Home / 15,613.68-21,557.28-9,242.34

Finding the Fourth Proportional to 15,613.68, 21,557.28 and 9,242.34

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Solution

The fourth proportional to 15,613.68, 21,557.28 and 9,242.34 is: 12,760.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,613.68 : 21,557.28 = 9,242.34 : x
  2. Step 2: Convert to fraction form
    15,613.68/21,557.28 = 9,242.34/x
  3. Step 3: Cross multiply
    15,613.68x = 21,557.28 × 9,242.34
  4. Step 4: Simplify right side
    15,613.68x = 199,239,711.24
  5. Step 5: Solve for x
    x = 199,239,711.24/15,613.68
  6. Step 6: Final answer
    x = 12,760.59

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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.