Home / 10,149.40-15,223.96-2,754.55

Finding the Fourth Proportional to 10,149.40, 15,223.96 and 2,754.55

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Solution

The fourth proportional to 10,149.40, 15,223.96 and 2,754.55 is: 4,131.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,149.40 : 15,223.96 = 2,754.55 : x
  2. Step 2: Convert to fraction form
    10,149.40/15,223.96 = 2,754.55/x
  3. Step 3: Cross multiply
    10,149.40x = 15,223.96 × 2,754.55
  4. Step 4: Simplify right side
    10,149.40x = 41,935,159.02
  5. Step 5: Solve for x
    x = 41,935,159.02/10,149.40
  6. Step 6: Final answer
    x = 4,131.79

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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.