Home / 12,436.05-18,655.13-4,115.82

Finding the Fourth Proportional to 12,436.05, 18,655.13 and 4,115.82

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Solution

The fourth proportional to 12,436.05, 18,655.13 and 4,115.82 is: 6,174.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.05 : 18,655.13 = 4,115.82 : x
  2. Step 2: Convert to fraction form
    12,436.05/18,655.13 = 4,115.82/x
  3. Step 3: Cross multiply
    12,436.05x = 18,655.13 × 4,115.82
  4. Step 4: Simplify right side
    12,436.05x = 76,781,157.16
  5. Step 5: Solve for x
    x = 76,781,157.16/12,436.05
  6. Step 6: Final answer
    x = 6,174.08

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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.