Home / 10,122.10-15,187.83-3,880.06

Finding the Fourth Proportional to 10,122.10, 15,187.83 and 3,880.06

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Solution

The fourth proportional to 10,122.10, 15,187.83 and 3,880.06 is: 5,821.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,122.10 : 15,187.83 = 3,880.06 : x
  2. Step 2: Convert to fraction form
    10,122.10/15,187.83 = 3,880.06/x
  3. Step 3: Cross multiply
    10,122.10x = 15,187.83 × 3,880.06
  4. Step 4: Simplify right side
    10,122.10x = 58,929,691.67
  5. Step 5: Solve for x
    x = 58,929,691.67/10,122.10
  6. Step 6: Final answer
    x = 5,821.88

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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.