Home / 19,861.32-29,791.93-12,470.97

Finding the Fourth Proportional to 19,861.32, 29,791.93 and 12,470.97

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Solution

The fourth proportional to 19,861.32, 29,791.93 and 12,470.97 is: 18,706.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.32 : 29,791.93 = 12,470.97 : x
  2. Step 2: Convert to fraction form
    19,861.32/29,791.93 = 12,470.97/x
  3. Step 3: Cross multiply
    19,861.32x = 29,791.93 × 12,470.97
  4. Step 4: Simplify right side
    19,861.32x = 371,534,265.27
  5. Step 5: Solve for x
    x = 371,534,265.27/19,861.32
  6. Step 6: Final answer
    x = 18,706.42

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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.