Home / 12,360.20-18,542.32-4,037.80

Finding the Fourth Proportional to 12,360.20, 18,542.32 and 4,037.80

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Solution

The fourth proportional to 12,360.20, 18,542.32 and 4,037.80 is: 6,057.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,360.20 : 18,542.32 = 4,037.80 : x
  2. Step 2: Convert to fraction form
    12,360.20/18,542.32 = 4,037.80/x
  3. Step 3: Cross multiply
    12,360.20x = 18,542.32 × 4,037.80
  4. Step 4: Simplify right side
    12,360.20x = 74,870,179.70
  5. Step 5: Solve for x
    x = 74,870,179.70/12,360.20
  6. Step 6: Final answer
    x = 6,057.36

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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.