Home / 11,538.72-15,854.22-9,176.76

Finding the Fourth Proportional to 11,538.72, 15,854.22 and 9,176.76

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Solution

The fourth proportional to 11,538.72, 15,854.22 and 9,176.76 is: 12,608.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,538.72 : 15,854.22 = 9,176.76 : x
  2. Step 2: Convert to fraction form
    11,538.72/15,854.22 = 9,176.76/x
  3. Step 3: Cross multiply
    11,538.72x = 15,854.22 × 9,176.76
  4. Step 4: Simplify right side
    11,538.72x = 145,490,371.93
  5. Step 5: Solve for x
    x = 145,490,371.93/11,538.72
  6. Step 6: Final answer
    x = 12,608.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.