Home / 15,627.30-21,565.71-8,553.69

Finding the Fourth Proportional to 15,627.30, 21,565.71 and 8,553.69

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Solution

The fourth proportional to 15,627.30, 21,565.71 and 8,553.69 is: 11,804.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,627.30 : 21,565.71 = 8,553.69 : x
  2. Step 2: Convert to fraction form
    15,627.30/21,565.71 = 8,553.69/x
  3. Step 3: Cross multiply
    15,627.30x = 21,565.71 × 8,553.69
  4. Step 4: Simplify right side
    15,627.30x = 184,466,397.97
  5. Step 5: Solve for x
    x = 184,466,397.97/15,627.30
  6. Step 6: Final answer
    x = 11,804.11

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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.