Home / 8,474.81-11,691.68-5,817.60

Finding the Fourth Proportional to 8,474.81, 11,691.68 and 5,817.60

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Solution

The fourth proportional to 8,474.81, 11,691.68 and 5,817.60 is: 8,025.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.81 : 11,691.68 = 5,817.60 : x
  2. Step 2: Convert to fraction form
    8,474.81/11,691.68 = 5,817.60/x
  3. Step 3: Cross multiply
    8,474.81x = 11,691.68 × 5,817.60
  4. Step 4: Simplify right side
    8,474.81x = 68,017,488.48
  5. Step 5: Solve for x
    x = 68,017,488.48/8,474.81
  6. Step 6: Final answer
    x = 8,025.85

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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.