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Finding the Fourth Proportional to 27,086.16, 40,627.92 and 9,318.58

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Solution

The fourth proportional to 27,086.16, 40,627.92 and 9,318.58 is: 13,977.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,086.16 : 40,627.92 = 9,318.58 : x
  2. Step 2: Convert to fraction form
    27,086.16/40,627.92 = 9,318.58/x
  3. Step 3: Cross multiply
    27,086.16x = 40,627.92 × 9,318.58
  4. Step 4: Simplify right side
    27,086.16x = 378,594,522.75
  5. Step 5: Solve for x
    x = 378,594,522.75/27,086.16
  6. Step 6: Final answer
    x = 13,977.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.