Home / 10,079.28-15,120.54-3,503.70

Finding the Fourth Proportional to 10,079.28, 15,120.54 and 3,503.70

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Solution

The fourth proportional to 10,079.28, 15,120.54 and 3,503.70 is: 5,256.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,079.28 : 15,120.54 = 3,503.70 : x
  2. Step 2: Convert to fraction form
    10,079.28/15,120.54 = 3,503.70/x
  3. Step 3: Cross multiply
    10,079.28x = 15,120.54 × 3,503.70
  4. Step 4: Simplify right side
    10,079.28x = 52,977,836.00
  5. Step 5: Solve for x
    x = 52,977,836.00/10,079.28
  6. Step 6: Final answer
    x = 5,256.11

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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.