Home / 12,382.11-18,573.17-5,461.47

Finding the Fourth Proportional to 12,382.11, 18,573.17 and 5,461.47

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Solution

The fourth proportional to 12,382.11, 18,573.17 and 5,461.47 is: 8,192.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.11 : 18,573.17 = 5,461.47 : x
  2. Step 2: Convert to fraction form
    12,382.11/18,573.17 = 5,461.47/x
  3. Step 3: Cross multiply
    12,382.11x = 18,573.17 × 5,461.47
  4. Step 4: Simplify right side
    12,382.11x = 101,436,783.45
  5. Step 5: Solve for x
    x = 101,436,783.45/12,382.11
  6. Step 6: Final answer
    x = 8,192.21

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Double scale
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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.