Home / 15,542.10-21,445.97-9,169.71

Finding the Fourth Proportional to 15,542.10, 21,445.97 and 9,169.71

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Solution

The fourth proportional to 15,542.10, 21,445.97 and 9,169.71 is: 12,652.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,542.10 : 21,445.97 = 9,169.71 : x
  2. Step 2: Convert to fraction form
    15,542.10/21,445.97 = 9,169.71/x
  3. Step 3: Cross multiply
    15,542.10x = 21,445.97 × 9,169.71
  4. Step 4: Simplify right side
    15,542.10x = 196,653,279.72
  5. Step 5: Solve for x
    x = 196,653,279.72/15,542.10
  6. Step 6: Final answer
    x = 12,652.94

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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.