Home / 17,760.18-26,637.90-5,279.97

Finding the Fourth Proportional to 17,760.18, 26,637.90 and 5,279.97

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Solution

The fourth proportional to 17,760.18, 26,637.90 and 5,279.97 is: 7,919.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,760.18 : 26,637.90 = 5,279.97 : x
  2. Step 2: Convert to fraction form
    17,760.18/26,637.90 = 5,279.97/x
  3. Step 3: Cross multiply
    17,760.18x = 26,637.90 × 5,279.97
  4. Step 4: Simplify right side
    17,760.18x = 140,647,312.86
  5. Step 5: Solve for x
    x = 140,647,312.86/17,760.18
  6. Step 6: Final answer
    x = 7,919.25

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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.