Home / 8,240.14-12,357.65-2,974.47

Finding the Fourth Proportional to 8,240.14, 12,357.65 and 2,974.47

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Solution

The fourth proportional to 8,240.14, 12,357.65 and 2,974.47 is: 4,460.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.14 : 12,357.65 = 2,974.47 : x
  2. Step 2: Convert to fraction form
    8,240.14/12,357.65 = 2,974.47/x
  3. Step 3: Cross multiply
    8,240.14x = 12,357.65 × 2,974.47
  4. Step 4: Simplify right side
    8,240.14x = 36,757,459.20
  5. Step 5: Solve for x
    x = 36,757,459.20/8,240.14
  6. Step 6: Final answer
    x = 4,460.78

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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.