Home / 15,545.34-21,452.58-8,471.88

Finding the Fourth Proportional to 15,545.34, 21,452.58 and 8,471.88

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Solution

The fourth proportional to 15,545.34, 21,452.58 and 8,471.88 is: 11,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,545.34 : 21,452.58 = 8,471.88 : x
  2. Step 2: Convert to fraction form
    15,545.34/21,452.58 = 8,471.88/x
  3. Step 3: Cross multiply
    15,545.34x = 21,452.58 × 8,471.88
  4. Step 4: Simplify right side
    15,545.34x = 181,743,683.45
  5. Step 5: Solve for x
    x = 181,743,683.45/15,545.34
  6. Step 6: Final answer
    x = 11,691.20

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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.