Home / 14,791.20-22,180.46-5,428.14

Finding the Fourth Proportional to 14,791.20, 22,180.46 and 5,428.14

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Solution

The fourth proportional to 14,791.20, 22,180.46 and 5,428.14 is: 8,139.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,791.20 : 22,180.46 = 5,428.14 : x
  2. Step 2: Convert to fraction form
    14,791.20/22,180.46 = 5,428.14/x
  3. Step 3: Cross multiply
    14,791.20x = 22,180.46 × 5,428.14
  4. Step 4: Simplify right side
    14,791.20x = 120,398,615.00
  5. Step 5: Solve for x
    x = 120,398,615.00/14,791.20
  6. Step 6: Final answer
    x = 8,139.88

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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.