Home / 14,242.91-21,379.01-10,087.61

Finding the Fourth Proportional to 14,242.91, 21,379.01 and 10,087.61

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Solution

The fourth proportional to 14,242.91, 21,379.01 and 10,087.61 is: 15,141.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,242.91 : 21,379.01 = 10,087.61 : x
  2. Step 2: Convert to fraction form
    14,242.91/21,379.01 = 10,087.61/x
  3. Step 3: Cross multiply
    14,242.91x = 21,379.01 × 10,087.61
  4. Step 4: Simplify right side
    14,242.91x = 215,662,957.73
  5. Step 5: Solve for x
    x = 215,662,957.73/14,242.91
  6. Step 6: Final answer
    x = 15,141.78

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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.