Home / 13,250.28-19,876.11-3,389.65

Finding the Fourth Proportional to 13,250.28, 19,876.11 and 3,389.65

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Solution

The fourth proportional to 13,250.28, 19,876.11 and 3,389.65 is: 5,084.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.28 : 19,876.11 = 3,389.65 : x
  2. Step 2: Convert to fraction form
    13,250.28/19,876.11 = 3,389.65/x
  3. Step 3: Cross multiply
    13,250.28x = 19,876.11 × 3,389.65
  4. Step 4: Simplify right side
    13,250.28x = 67,373,003.39
  5. Step 5: Solve for x
    x = 67,373,003.39/13,250.28
  6. Step 6: Final answer
    x = 5,084.65

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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.