Home / 15,545.25-21,452.49-8,471.52

Finding the Fourth Proportional to 15,545.25, 21,452.49 and 8,471.52

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Solution

The fourth proportional to 15,545.25, 21,452.49 and 8,471.52 is: 11,690.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,545.25 : 21,452.49 = 8,471.52 : x
  2. Step 2: Convert to fraction form
    15,545.25/21,452.49 = 8,471.52/x
  3. Step 3: Cross multiply
    15,545.25x = 21,452.49 × 8,471.52
  4. Step 4: Simplify right side
    15,545.25x = 181,735,198.08
  5. Step 5: Solve for x
    x = 181,735,198.08/15,545.25
  6. Step 6: Final answer
    x = 11,690.72

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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.