Home / 10,221.08-15,331.22-3,200.95

Finding the Fourth Proportional to 10,221.08, 15,331.22 and 3,200.95

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Solution

The fourth proportional to 10,221.08, 15,331.22 and 3,200.95 is: 4,801.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.08 : 15,331.22 = 3,200.95 : x
  2. Step 2: Convert to fraction form
    10,221.08/15,331.22 = 3,200.95/x
  3. Step 3: Cross multiply
    10,221.08x = 15,331.22 × 3,200.95
  4. Step 4: Simplify right side
    10,221.08x = 49,074,376.00
  5. Step 5: Solve for x
    x = 49,074,376.00/10,221.08
  6. Step 6: Final answer
    x = 4,801.29

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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.