Home / 8,781.08-13,169.63-2,539.71

Finding the Fourth Proportional to 8,781.08, 13,169.63 and 2,539.71

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Solution

The fourth proportional to 8,781.08, 13,169.63 and 2,539.71 is: 3,808.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.08 : 13,169.63 = 2,539.71 : x
  2. Step 2: Convert to fraction form
    8,781.08/13,169.63 = 2,539.71/x
  3. Step 3: Cross multiply
    8,781.08x = 13,169.63 × 2,539.71
  4. Step 4: Simplify right side
    8,781.08x = 33,447,028.31
  5. Step 5: Solve for x
    x = 33,447,028.31/8,781.08
  6. Step 6: Final answer
    x = 3,808.99

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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.