Home / 8,613.28-11,887.24-5,469.47

Finding the Fourth Proportional to 8,613.28, 11,887.24 and 5,469.47

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Solution

The fourth proportional to 8,613.28, 11,887.24 and 5,469.47 is: 7,548.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613.28 : 11,887.24 = 5,469.47 : x
  2. Step 2: Convert to fraction form
    8,613.28/11,887.24 = 5,469.47/x
  3. Step 3: Cross multiply
    8,613.28x = 11,887.24 × 5,469.47
  4. Step 4: Simplify right side
    8,613.28x = 65,016,884.29
  5. Step 5: Solve for x
    x = 65,016,884.29/8,613.28
  6. Step 6: Final answer
    x = 7,548.45

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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.