Home / 12,382.62-18,574.56-3,618.24

Finding the Fourth Proportional to 12,382.62, 18,574.56 and 3,618.24

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Solution

The fourth proportional to 12,382.62, 18,574.56 and 3,618.24 is: 5,427.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.62 : 18,574.56 = 3,618.24 : x
  2. Step 2: Convert to fraction form
    12,382.62/18,574.56 = 3,618.24/x
  3. Step 3: Cross multiply
    12,382.62x = 18,574.56 × 3,618.24
  4. Step 4: Simplify right side
    12,382.62x = 67,207,215.97
  5. Step 5: Solve for x
    x = 67,207,215.97/12,382.62
  6. Step 6: Final answer
    x = 5,427.54

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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.