Home / 10,131.14-15,179.70-7,194.90

Finding the Fourth Proportional to 10,131.14, 15,179.70 and 7,194.90

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Solution

The fourth proportional to 10,131.14, 15,179.70 and 7,194.90 is: 10,780.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.14 : 15,179.70 = 7,194.90 : x
  2. Step 2: Convert to fraction form
    10,131.14/15,179.70 = 7,194.90/x
  3. Step 3: Cross multiply
    10,131.14x = 15,179.70 × 7,194.90
  4. Step 4: Simplify right side
    10,131.14x = 109,216,423.53
  5. Step 5: Solve for x
    x = 109,216,423.53/10,131.14
  6. Step 6: Final answer
    x = 10,780.27

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1.5x scale

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.