Home / 13,962.20-20,943.30-8,057.30

Finding the Fourth Proportional to 13,962.20, 20,943.30 and 8,057.30

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Solution

The fourth proportional to 13,962.20, 20,943.30 and 8,057.30 is: 12,085.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,962.20 : 20,943.30 = 8,057.30 : x
  2. Step 2: Convert to fraction form
    13,962.20/20,943.30 = 8,057.30/x
  3. Step 3: Cross multiply
    13,962.20x = 20,943.30 × 8,057.30
  4. Step 4: Simplify right side
    13,962.20x = 168,746,451.09
  5. Step 5: Solve for x
    x = 168,746,451.09/13,962.20
  6. Step 6: Final answer
    x = 12,085.95

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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.