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Finding the Fourth Proportional to 8,275.58, 11,420.19 and 4,498.82

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Solution

The fourth proportional to 8,275.58, 11,420.19 and 4,498.82 is: 6,208.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.58 : 11,420.19 = 4,498.82 : x
  2. Step 2: Convert to fraction form
    8,275.58/11,420.19 = 4,498.82/x
  3. Step 3: Cross multiply
    8,275.58x = 11,420.19 × 4,498.82
  4. Step 4: Simplify right side
    8,275.58x = 51,377,379.18
  5. Step 5: Solve for x
    x = 51,377,379.18/8,275.58
  6. Step 6: Final answer
    x = 6,208.31

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Half scale
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Double scale
Find fourth proportional to 8,276.58, 11,421.57 and 4,499.82
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.