Home / 8,238.90-12,346.12-4,331.46

Finding the Fourth Proportional to 8,238.90, 12,346.12 and 4,331.46

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Solution

The fourth proportional to 8,238.90, 12,346.12 and 4,331.46 is: 6,490.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,238.90 : 12,346.12 = 4,331.46 : x
  2. Step 2: Convert to fraction form
    8,238.90/12,346.12 = 4,331.46/x
  3. Step 3: Cross multiply
    8,238.90x = 12,346.12 × 4,331.46
  4. Step 4: Simplify right side
    8,238.90x = 53,476,724.94
  5. Step 5: Solve for x
    x = 53,476,724.94/8,238.90
  6. Step 6: Final answer
    x = 6,490.76

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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.