Home / 8,701.28-12,010.80-5,167.52

Finding the Fourth Proportional to 8,701.28, 12,010.80 and 5,167.52

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Solution

The fourth proportional to 8,701.28, 12,010.80 and 5,167.52 is: 7,132.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.28 : 12,010.80 = 5,167.52 : x
  2. Step 2: Convert to fraction form
    8,701.28/12,010.80 = 5,167.52/x
  3. Step 3: Cross multiply
    8,701.28x = 12,010.80 × 5,167.52
  4. Step 4: Simplify right side
    8,701.28x = 62,066,049.22
  5. Step 5: Solve for x
    x = 62,066,049.22/8,701.28
  6. Step 6: Final answer
    x = 7,132.98

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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.