Home / 12,398.36-18,600.76-4,079.66

Finding the Fourth Proportional to 12,398.36, 18,600.76 and 4,079.66

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Solution

The fourth proportional to 12,398.36, 18,600.76 and 4,079.66 is: 6,120.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,398.36 : 18,600.76 = 4,079.66 : x
  2. Step 2: Convert to fraction form
    12,398.36/18,600.76 = 4,079.66/x
  3. Step 3: Cross multiply
    12,398.36x = 18,600.76 × 4,079.66
  4. Step 4: Simplify right side
    12,398.36x = 75,884,776.54
  5. Step 5: Solve for x
    x = 75,884,776.54/12,398.36
  6. Step 6: Final answer
    x = 6,120.55

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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.