Home / 8,468.38-11,686.34-4,691.55

Finding the Fourth Proportional to 8,468.38, 11,686.34 and 4,691.55

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Solution

The fourth proportional to 8,468.38, 11,686.34 and 4,691.55 is: 6,474.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,468.38 : 11,686.34 = 4,691.55 : x
  2. Step 2: Convert to fraction form
    8,468.38/11,686.34 = 4,691.55/x
  3. Step 3: Cross multiply
    8,468.38x = 11,686.34 × 4,691.55
  4. Step 4: Simplify right side
    8,468.38x = 54,827,024.97
  5. Step 5: Solve for x
    x = 54,827,024.97/8,468.38
  6. Step 6: Final answer
    x = 6,474.33

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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.