Home / 15,613.66-21,553.90-10,849.70

Finding the Fourth Proportional to 15,613.66, 21,553.90 and 10,849.70

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Solution

The fourth proportional to 15,613.66, 21,553.90 and 10,849.70 is: 14,977.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,613.66 : 21,553.90 = 10,849.70 : x
  2. Step 2: Convert to fraction form
    15,613.66/21,553.90 = 10,849.70/x
  3. Step 3: Cross multiply
    15,613.66x = 21,553.90 × 10,849.70
  4. Step 4: Simplify right side
    15,613.66x = 233,853,254.35
  5. Step 5: Solve for x
    x = 233,853,254.35/15,613.66
  6. Step 6: Final answer
    x = 14,977.48

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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.