Home / 8,230.32-12,342.76-2,387.12

Finding the Fourth Proportional to 8,230.32, 12,342.76 and 2,387.12

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Solution

The fourth proportional to 8,230.32, 12,342.76 and 2,387.12 is: 3,579.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,230.32 : 12,342.76 = 2,387.12 : x
  2. Step 2: Convert to fraction form
    8,230.32/12,342.76 = 2,387.12/x
  3. Step 3: Cross multiply
    8,230.32x = 12,342.76 × 2,387.12
  4. Step 4: Simplify right side
    8,230.32x = 29,463,649.25
  5. Step 5: Solve for x
    x = 29,463,649.25/8,230.32
  6. Step 6: Final answer
    x = 3,579.89

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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.