Home / 15,545.60-21,452.95-8,472.07

Finding the Fourth Proportional to 15,545.60, 21,452.95 and 8,472.07

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Solution

The fourth proportional to 15,545.60, 21,452.95 and 8,472.07 is: 11,691.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,545.60 : 21,452.95 = 8,472.07 : x
  2. Step 2: Convert to fraction form
    15,545.60/21,452.95 = 8,472.07/x
  3. Step 3: Cross multiply
    15,545.60x = 21,452.95 × 8,472.07
  4. Step 4: Simplify right side
    15,545.60x = 181,750,894.11
  5. Step 5: Solve for x
    x = 181,750,894.11/15,545.60
  6. Step 6: Final answer
    x = 11,691.47

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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.