Home / 10,159.30-15,229.38-3,581.28

Finding the Fourth Proportional to 10,159.30, 15,229.38 and 3,581.28

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Solution

The fourth proportional to 10,159.30, 15,229.38 and 3,581.28 is: 5,368.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,159.30 : 15,229.38 = 3,581.28 : x
  2. Step 2: Convert to fraction form
    10,159.30/15,229.38 = 3,581.28/x
  3. Step 3: Cross multiply
    10,159.30x = 15,229.38 × 3,581.28
  4. Step 4: Simplify right side
    10,159.30x = 54,540,674.01
  5. Step 5: Solve for x
    x = 54,540,674.01/10,159.30
  6. Step 6: Final answer
    x = 5,368.55

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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.