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Finding the Fourth Proportional to 26,517.71, 39,773.84 and 8,987.09

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Solution

The fourth proportional to 26,517.71, 39,773.84 and 8,987.09 is: 13,479.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,517.71 : 39,773.84 = 8,987.09 : x
  2. Step 2: Convert to fraction form
    26,517.71/39,773.84 = 8,987.09/x
  3. Step 3: Cross multiply
    26,517.71x = 39,773.84 × 8,987.09
  4. Step 4: Simplify right side
    26,517.71x = 357,450,835.92
  5. Step 5: Solve for x
    x = 357,450,835.92/26,517.71
  6. Step 6: Final answer
    x = 13,479.70

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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.