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Finding the Fourth Proportional to 8,377.60, 11,561 and 4,600.75

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Solution

The fourth proportional to 8,377.60, 11,561 and 4,600.75 is: 6,348.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,377.60 : 11,561 = 4,600.75 : x
  2. Step 2: Convert to fraction form
    8,377.60/11,561 = 4,600.75/x
  3. Step 3: Cross multiply
    8,377.60x = 11,561 × 4,600.75
  4. Step 4: Simplify right side
    8,377.60x = 53,189,270.75
  5. Step 5: Solve for x
    x = 53,189,270.75/8,377.60
  6. Step 6: Final answer
    x = 6,348.99

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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.