Home / 14,754.13-20,351.40-8,781.34

Finding the Fourth Proportional to 14,754.13, 20,351.40 and 8,781.34

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Solution

The fourth proportional to 14,754.13, 20,351.40 and 8,781.34 is: 12,112.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,754.13 : 20,351.40 = 8,781.34 : x
  2. Step 2: Convert to fraction form
    14,754.13/20,351.40 = 8,781.34/x
  3. Step 3: Cross multiply
    14,754.13x = 20,351.40 × 8,781.34
  4. Step 4: Simplify right side
    14,754.13x = 178,712,562.88
  5. Step 5: Solve for x
    x = 178,712,562.88/14,754.13
  6. Step 6: Final answer
    x = 12,112.71

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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.