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Finding the Fourth Proportional to 8,328.60, 11,493.51 and 4,551.71

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Solution

The fourth proportional to 8,328.60, 11,493.51 and 4,551.71 is: 6,281.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.60 : 11,493.51 = 4,551.71 : x
  2. Step 2: Convert to fraction form
    8,328.60/11,493.51 = 4,551.71/x
  3. Step 3: Cross multiply
    8,328.60x = 11,493.51 × 4,551.71
  4. Step 4: Simplify right side
    8,328.60x = 52,315,066.93
  5. Step 5: Solve for x
    x = 52,315,066.93/8,328.60
  6. Step 6: Final answer
    x = 6,281.38

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Find fourth proportional to 4,164.30, 5,746.76 and 2,275.85
Half scale
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Double scale
Find fourth proportional to 8,329.60, 11,494.89 and 4,552.71
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.