Home / 17,116.20-25,631.10-12,709.80

Finding the Fourth Proportional to 17,116.20, 25,631.10 and 12,709.80

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Solution

The fourth proportional to 17,116.20, 25,631.10 and 12,709.80 is: 19,032.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,116.20 : 25,631.10 = 12,709.80 : x
  2. Step 2: Convert to fraction form
    17,116.20/25,631.10 = 12,709.80/x
  3. Step 3: Cross multiply
    17,116.20x = 25,631.10 × 12,709.80
  4. Step 4: Simplify right side
    17,116.20x = 325,766,154.78
  5. Step 5: Solve for x
    x = 325,766,154.78/17,116.20
  6. Step 6: Final answer
    x = 19,032.62

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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.