Home / 12,436.74-18,656.48-3,671.66

Finding the Fourth Proportional to 12,436.74, 18,656.48 and 3,671.66

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Solution

The fourth proportional to 12,436.74, 18,656.48 and 3,671.66 is: 5,507.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.74 : 18,656.48 = 3,671.66 : x
  2. Step 2: Convert to fraction form
    12,436.74/18,656.48 = 3,671.66/x
  3. Step 3: Cross multiply
    12,436.74x = 18,656.48 × 3,671.66
  4. Step 4: Simplify right side
    12,436.74x = 68,500,139.72
  5. Step 5: Solve for x
    x = 68,500,139.72/12,436.74
  6. Step 6: Final answer
    x = 5,507.89

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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.