Home / 10,118.28-15,133.05-6,158.61

Finding the Fourth Proportional to 10,118.28, 15,133.05 and 6,158.61

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Solution

The fourth proportional to 10,118.28, 15,133.05 and 6,158.61 is: 9,210.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,118.28 : 15,133.05 = 6,158.61 : x
  2. Step 2: Convert to fraction form
    10,118.28/15,133.05 = 6,158.61/x
  3. Step 3: Cross multiply
    10,118.28x = 15,133.05 × 6,158.61
  4. Step 4: Simplify right side
    10,118.28x = 93,198,553.06
  5. Step 5: Solve for x
    x = 93,198,553.06/10,118.28
  6. Step 6: Final answer
    x = 9,210.91

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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.