Home / 10,240.20-15,345.87-8,150.91

Finding the Fourth Proportional to 10,240.20, 15,345.87 and 8,150.91

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Solution

The fourth proportional to 10,240.20, 15,345.87 and 8,150.91 is: 12,214.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,240.20 : 15,345.87 = 8,150.91 : x
  2. Step 2: Convert to fraction form
    10,240.20/15,345.87 = 8,150.91/x
  3. Step 3: Cross multiply
    10,240.20x = 15,345.87 × 8,150.91
  4. Step 4: Simplify right side
    10,240.20x = 125,082,805.24
  5. Step 5: Solve for x
    x = 125,082,805.24/10,240.20
  6. Step 6: Final answer
    x = 12,214.88

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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.