Home / 10,619.28-15,936.18-3,693.78

Finding the Fourth Proportional to 10,619.28, 15,936.18 and 3,693.78

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Solution

The fourth proportional to 10,619.28, 15,936.18 and 3,693.78 is: 5,543.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.28 : 15,936.18 = 3,693.78 : x
  2. Step 2: Convert to fraction form
    10,619.28/15,936.18 = 3,693.78/x
  3. Step 3: Cross multiply
    10,619.28x = 15,936.18 × 3,693.78
  4. Step 4: Simplify right side
    10,619.28x = 58,864,742.96
  5. Step 5: Solve for x
    x = 58,864,742.96/10,619.28
  6. Step 6: Final answer
    x = 5,543.20

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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.