Home / 12,377.20-18,568.50-6,140.62

Finding the Fourth Proportional to 12,377.20, 18,568.50 and 6,140.62

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Solution

The fourth proportional to 12,377.20, 18,568.50 and 6,140.62 is: 9,212.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,377.20 : 18,568.50 = 6,140.62 : x
  2. Step 2: Convert to fraction form
    12,377.20/18,568.50 = 6,140.62/x
  3. Step 3: Cross multiply
    12,377.20x = 18,568.50 × 6,140.62
  4. Step 4: Simplify right side
    12,377.20x = 114,022,102.47
  5. Step 5: Solve for x
    x = 114,022,102.47/12,377.20
  6. Step 6: Final answer
    x = 9,212.27

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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.