Home / 12,436.08-18,656.14-3,671.88

Finding the Fourth Proportional to 12,436.08, 18,656.14 and 3,671.88

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Solution

The fourth proportional to 12,436.08, 18,656.14 and 3,671.88 is: 5,508.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.08 : 18,656.14 = 3,671.88 : x
  2. Step 2: Convert to fraction form
    12,436.08/18,656.14 = 3,671.88/x
  3. Step 3: Cross multiply
    12,436.08x = 18,656.14 × 3,671.88
  4. Step 4: Simplify right side
    12,436.08x = 68,502,995.70
  5. Step 5: Solve for x
    x = 68,502,995.70/12,436.08
  6. Step 6: Final answer
    x = 5,508.41

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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.