Home / 12,079.49-18,119.25-3,314.47

Finding the Fourth Proportional to 12,079.49, 18,119.25 and 3,314.47

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Solution

The fourth proportional to 12,079.49, 18,119.25 and 3,314.47 is: 4,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.49 : 18,119.25 = 3,314.47 : x
  2. Step 2: Convert to fraction form
    12,079.49/18,119.25 = 3,314.47/x
  3. Step 3: Cross multiply
    12,079.49x = 18,119.25 × 3,314.47
  4. Step 4: Simplify right side
    12,079.49x = 60,055,693.98
  5. Step 5: Solve for x
    x = 60,055,693.98/12,079.49
  6. Step 6: Final answer
    x = 4,971.71

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Similar ratio
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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.