Home / 12,316.05-18,472.86-3,993.71

Finding the Fourth Proportional to 12,316.05, 18,472.86 and 3,993.71

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Solution

The fourth proportional to 12,316.05, 18,472.86 and 3,993.71 is: 5,990.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.05 : 18,472.86 = 3,993.71 : x
  2. Step 2: Convert to fraction form
    12,316.05/18,472.86 = 3,993.71/x
  3. Step 3: Cross multiply
    12,316.05x = 18,472.86 × 3,993.71
  4. Step 4: Simplify right side
    12,316.05x = 73,775,153.35
  5. Step 5: Solve for x
    x = 73,775,153.35/12,316.05
  6. Step 6: Final answer
    x = 5,990.16

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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.