Home / 15,141.36-22,711.84-5,280.61

Finding the Fourth Proportional to 15,141.36, 22,711.84 and 5,280.61

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Solution

The fourth proportional to 15,141.36, 22,711.84 and 5,280.61 is: 7,920.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,141.36 : 22,711.84 = 5,280.61 : x
  2. Step 2: Convert to fraction form
    15,141.36/22,711.84 = 5,280.61/x
  3. Step 3: Cross multiply
    15,141.36x = 22,711.84 × 5,280.61
  4. Step 4: Simplify right side
    15,141.36x = 119,932,371.73
  5. Step 5: Solve for x
    x = 119,932,371.73/15,141.36
  6. Step 6: Final answer
    x = 7,920.84

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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.