Home / 8,613.66-11,887.76-5,469.84

Finding the Fourth Proportional to 8,613.66, 11,887.76 and 5,469.84

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Solution

The fourth proportional to 8,613.66, 11,887.76 and 5,469.84 is: 7,548.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613.66 : 11,887.76 = 5,469.84 : x
  2. Step 2: Convert to fraction form
    8,613.66/11,887.76 = 5,469.84/x
  3. Step 3: Cross multiply
    8,613.66x = 11,887.76 × 5,469.84
  4. Step 4: Simplify right side
    8,613.66x = 65,024,182.90
  5. Step 5: Solve for x
    x = 65,024,182.90/8,613.66
  6. Step 6: Final answer
    x = 7,548.96

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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.