Home / 13,694.13-20,549.70-8,767.30

Finding the Fourth Proportional to 13,694.13, 20,549.70 and 8,767.30

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Solution

The fourth proportional to 13,694.13, 20,549.70 and 8,767.30 is: 13,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,694.13 : 20,549.70 = 8,767.30 : x
  2. Step 2: Convert to fraction form
    13,694.13/20,549.70 = 8,767.30/x
  3. Step 3: Cross multiply
    13,694.13x = 20,549.70 × 8,767.30
  4. Step 4: Simplify right side
    13,694.13x = 180,165,377.62
  5. Step 5: Solve for x
    x = 180,165,377.62/13,694.13
  6. Step 6: Final answer
    x = 13,156.40

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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.