Home / 8,255.60-11,393.51-4,718.12

Finding the Fourth Proportional to 8,255.60, 11,393.51 and 4,718.12

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Solution

The fourth proportional to 8,255.60, 11,393.51 and 4,718.12 is: 6,511.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.60 : 11,393.51 = 4,718.12 : x
  2. Step 2: Convert to fraction form
    8,255.60/11,393.51 = 4,718.12/x
  3. Step 3: Cross multiply
    8,255.60x = 11,393.51 × 4,718.12
  4. Step 4: Simplify right side
    8,255.60x = 53,755,866.84
  5. Step 5: Solve for x
    x = 53,755,866.84/8,255.60
  6. Step 6: Final answer
    x = 6,511.45

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Half scale
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Double scale
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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.