Home / 15,739.88-21,719.45-9,023.96

Finding the Fourth Proportional to 15,739.88, 21,719.45 and 9,023.96

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Solution

The fourth proportional to 15,739.88, 21,719.45 and 9,023.96 is: 12,452.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,739.88 : 21,719.45 = 9,023.96 : x
  2. Step 2: Convert to fraction form
    15,739.88/21,719.45 = 9,023.96/x
  3. Step 3: Cross multiply
    15,739.88x = 21,719.45 × 9,023.96
  4. Step 4: Simplify right side
    15,739.88x = 195,995,294.30
  5. Step 5: Solve for x
    x = 195,995,294.30/15,739.88
  6. Step 6: Final answer
    x = 12,452.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.