Home / 12,458.44-18,691.02-4,139.80

Finding the Fourth Proportional to 12,458.44, 18,691.02 and 4,139.80

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Solution

The fourth proportional to 12,458.44, 18,691.02 and 4,139.80 is: 6,210.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458.44 : 18,691.02 = 4,139.80 : x
  2. Step 2: Convert to fraction form
    12,458.44/18,691.02 = 4,139.80/x
  3. Step 3: Cross multiply
    12,458.44x = 18,691.02 × 4,139.80
  4. Step 4: Simplify right side
    12,458.44x = 77,377,084.60
  5. Step 5: Solve for x
    x = 77,377,084.60/12,458.44
  6. Step 6: Final answer
    x = 6,210.82

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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.