Home / 19,545.20-29,284.20-9,135.60

Finding the Fourth Proportional to 19,545.20, 29,284.20 and 9,135.60

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Solution

The fourth proportional to 19,545.20, 29,284.20 and 9,135.60 is: 13,687.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,545.20 : 29,284.20 = 9,135.60 : x
  2. Step 2: Convert to fraction form
    19,545.20/29,284.20 = 9,135.60/x
  3. Step 3: Cross multiply
    19,545.20x = 29,284.20 × 9,135.60
  4. Step 4: Simplify right side
    19,545.20x = 267,528,737.52
  5. Step 5: Solve for x
    x = 267,528,737.52/19,545.20
  6. Step 6: Final answer
    x = 13,687.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.