Home / 12,575.84-18,867.29-3,691.38

Finding the Fourth Proportional to 12,575.84, 18,867.29 and 3,691.38

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Solution

The fourth proportional to 12,575.84, 18,867.29 and 3,691.38 is: 5,538.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,575.84 : 18,867.29 = 3,691.38 : x
  2. Step 2: Convert to fraction form
    12,575.84/18,867.29 = 3,691.38/x
  3. Step 3: Cross multiply
    12,575.84x = 18,867.29 × 3,691.38
  4. Step 4: Simplify right side
    12,575.84x = 69,646,336.96
  5. Step 5: Solve for x
    x = 69,646,336.96/12,575.84
  6. Step 6: Final answer
    x = 5,538.11

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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.