Home / 15,545.49-21,452.79-8,471.93

Finding the Fourth Proportional to 15,545.49, 21,452.79 and 8,471.93

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Solution

The fourth proportional to 15,545.49, 21,452.79 and 8,471.93 is: 11,691.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,545.49 : 21,452.79 = 8,471.93 : x
  2. Step 2: Convert to fraction form
    15,545.49/21,452.79 = 8,471.93/x
  3. Step 3: Cross multiply
    15,545.49x = 21,452.79 × 8,471.93
  4. Step 4: Simplify right side
    15,545.49x = 181,746,535.18
  5. Step 5: Solve for x
    x = 181,746,535.18/15,545.49
  6. Step 6: Final answer
    x = 11,691.27

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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.