Home / 12,472.11-17,207.10-8,231.13

Finding the Fourth Proportional to 12,472.11, 17,207.10 and 8,231.13

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Solution

The fourth proportional to 12,472.11, 17,207.10 and 8,231.13 is: 11,356.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.11 : 17,207.10 = 8,231.13 : x
  2. Step 2: Convert to fraction form
    12,472.11/17,207.10 = 8,231.13/x
  3. Step 3: Cross multiply
    12,472.11x = 17,207.10 × 8,231.13
  4. Step 4: Simplify right side
    12,472.11x = 141,633,877.02
  5. Step 5: Solve for x
    x = 141,633,877.02/12,472.11
  6. Step 6: Final answer
    x = 11,356.05

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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.