Home / 14,772.20-20,385.68-8,057.95

Finding the Fourth Proportional to 14,772.20, 20,385.68 and 8,057.95

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Solution

The fourth proportional to 14,772.20, 20,385.68 and 8,057.95 is: 11,119.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,772.20 : 20,385.68 = 8,057.95 : x
  2. Step 2: Convert to fraction form
    14,772.20/20,385.68 = 8,057.95/x
  3. Step 3: Cross multiply
    14,772.20x = 20,385.68 × 8,057.95
  4. Step 4: Simplify right side
    14,772.20x = 164,266,698.90
  5. Step 5: Solve for x
    x = 164,266,698.90/14,772.20
  6. Step 6: Final answer
    x = 11,119.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.