Home / 15,553.71-21,464.24-8,480.18

Finding the Fourth Proportional to 15,553.71, 21,464.24 and 8,480.18

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Solution

The fourth proportional to 15,553.71, 21,464.24 and 8,480.18 is: 11,702.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.71 : 21,464.24 = 8,480.18 : x
  2. Step 2: Convert to fraction form
    15,553.71/21,464.24 = 8,480.18/x
  3. Step 3: Cross multiply
    15,553.71x = 21,464.24 × 8,480.18
  4. Step 4: Simplify right side
    15,553.71x = 182,020,469.04
  5. Step 5: Solve for x
    x = 182,020,469.04/15,553.71
  6. Step 6: Final answer
    x = 11,702.71

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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.