Home / 8,243.28-12,345.12-6,161.04

Finding the Fourth Proportional to 8,243.28, 12,345.12 and 6,161.04

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Solution

The fourth proportional to 8,243.28, 12,345.12 and 6,161.04 is: 9,226.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,243.28 : 12,345.12 = 6,161.04 : x
  2. Step 2: Convert to fraction form
    8,243.28/12,345.12 = 6,161.04/x
  3. Step 3: Cross multiply
    8,243.28x = 12,345.12 × 6,161.04
  4. Step 4: Simplify right side
    8,243.28x = 76,058,778.12
  5. Step 5: Solve for x
    x = 76,058,778.12/8,243.28
  6. Step 6: Final answer
    x = 9,226.76

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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.