Home / 14,445.38-19,936.92-8,781.91

Finding the Fourth Proportional to 14,445.38, 19,936.92 and 8,781.91

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Solution

The fourth proportional to 14,445.38, 19,936.92 and 8,781.91 is: 12,120.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,445.38 : 19,936.92 = 8,781.91 : x
  2. Step 2: Convert to fraction form
    14,445.38/19,936.92 = 8,781.91/x
  3. Step 3: Cross multiply
    14,445.38x = 19,936.92 × 8,781.91
  4. Step 4: Simplify right side
    14,445.38x = 175,084,093.52
  5. Step 5: Solve for x
    x = 175,084,093.52/14,445.38
  6. Step 6: Final answer
    x = 12,120.42

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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.