Home / 14,977.20-22,422.60-9,145.20

Finding the Fourth Proportional to 14,977.20, 22,422.60 and 9,145.20

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Solution

The fourth proportional to 14,977.20, 22,422.60 and 9,145.20 is: 13,691.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,977.20 : 22,422.60 = 9,145.20 : x
  2. Step 2: Convert to fraction form
    14,977.20/22,422.60 = 9,145.20/x
  3. Step 3: Cross multiply
    14,977.20x = 22,422.60 × 9,145.20
  4. Step 4: Simplify right side
    14,977.20x = 205,059,161.52
  5. Step 5: Solve for x
    x = 205,059,161.52/14,977.20
  6. Step 6: Final answer
    x = 13,691.42

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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.