Home / 12,576.53-18,867.71-3,691.51

Finding the Fourth Proportional to 12,576.53, 18,867.71 and 3,691.51

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Solution

The fourth proportional to 12,576.53, 18,867.71 and 3,691.51 is: 5,538.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.53 : 18,867.71 = 3,691.51 : x
  2. Step 2: Convert to fraction form
    12,576.53/18,867.71 = 3,691.51/x
  3. Step 3: Cross multiply
    12,576.53x = 18,867.71 × 3,691.51
  4. Step 4: Simplify right side
    12,576.53x = 69,650,302.20
  5. Step 5: Solve for x
    x = 69,650,302.20/12,576.53
  6. Step 6: Final answer
    x = 5,538.12

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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.