Home / 8,781.40-13,168.26-2,623.96

Finding the Fourth Proportional to 8,781.40, 13,168.26 and 2,623.96

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Solution

The fourth proportional to 8,781.40, 13,168.26 and 2,623.96 is: 3,934.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.40 : 13,168.26 = 2,623.96 : x
  2. Step 2: Convert to fraction form
    8,781.40/13,168.26 = 2,623.96/x
  3. Step 3: Cross multiply
    8,781.40x = 13,168.26 × 2,623.96
  4. Step 4: Simplify right side
    8,781.40x = 34,552,987.51
  5. Step 5: Solve for x
    x = 34,552,987.51/8,781.40
  6. Step 6: Final answer
    x = 3,934.79

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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.