Home / 12,549.28-17,317.38-7,243.78

Finding the Fourth Proportional to 12,549.28, 17,317.38 and 7,243.78

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Solution

The fourth proportional to 12,549.28, 17,317.38 and 7,243.78 is: 9,996.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.28 : 17,317.38 = 7,243.78 : x
  2. Step 2: Convert to fraction form
    12,549.28/17,317.38 = 7,243.78/x
  3. Step 3: Cross multiply
    12,549.28x = 17,317.38 × 7,243.78
  4. Step 4: Simplify right side
    12,549.28x = 125,443,290.90
  5. Step 5: Solve for x
    x = 125,443,290.90/12,549.28
  6. Step 6: Final answer
    x = 9,996.05

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1.5x scale

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.