Home / 11,433.88-15,781.20-8,752.24

Finding the Fourth Proportional to 11,433.88, 15,781.20 and 8,752.24

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Solution

The fourth proportional to 11,433.88, 15,781.20 and 8,752.24 is: 12,079.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,433.88 : 15,781.20 = 8,752.24 : x
  2. Step 2: Convert to fraction form
    11,433.88/15,781.20 = 8,752.24/x
  3. Step 3: Cross multiply
    11,433.88x = 15,781.20 × 8,752.24
  4. Step 4: Simplify right side
    11,433.88x = 138,120,849.89
  5. Step 5: Solve for x
    x = 138,120,849.89/11,433.88
  6. Step 6: Final answer
    x = 12,079.96

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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.