Home / 10,105.72-15,157.84-3,182.20

Finding the Fourth Proportional to 10,105.72, 15,157.84 and 3,182.20

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Solution

The fourth proportional to 10,105.72, 15,157.84 and 3,182.20 is: 4,773.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,105.72 : 15,157.84 = 3,182.20 : x
  2. Step 2: Convert to fraction form
    10,105.72/15,157.84 = 3,182.20/x
  3. Step 3: Cross multiply
    10,105.72x = 15,157.84 × 3,182.20
  4. Step 4: Simplify right side
    10,105.72x = 48,235,278.45
  5. Step 5: Solve for x
    x = 48,235,278.45/10,105.72
  6. Step 6: Final answer
    x = 4,773.07

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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.