Home / 12,781.53-17,633.70-9,432.36

Finding the Fourth Proportional to 12,781.53, 17,633.70 and 9,432.36

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Solution

The fourth proportional to 12,781.53, 17,633.70 and 9,432.36 is: 13,013.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781.53 : 17,633.70 = 9,432.36 : x
  2. Step 2: Convert to fraction form
    12,781.53/17,633.70 = 9,432.36/x
  3. Step 3: Cross multiply
    12,781.53x = 17,633.70 × 9,432.36
  4. Step 4: Simplify right side
    12,781.53x = 166,327,406.53
  5. Step 5: Solve for x
    x = 166,327,406.53/12,781.53
  6. Step 6: Final answer
    x = 13,013.11

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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.