Home / 15,613.50-21,557.03-9,242.13

Finding the Fourth Proportional to 15,613.50, 21,557.03 and 9,242.13

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Solution

The fourth proportional to 15,613.50, 21,557.03 and 9,242.13 is: 12,760.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,613.50 : 21,557.03 = 9,242.13 : x
  2. Step 2: Convert to fraction form
    15,613.50/21,557.03 = 9,242.13/x
  3. Step 3: Cross multiply
    15,613.50x = 21,557.03 × 9,242.13
  4. Step 4: Simplify right side
    15,613.50x = 199,232,873.67
  5. Step 5: Solve for x
    x = 199,232,873.67/15,613.50
  6. Step 6: Final answer
    x = 12,760.30

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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.