Home / 12,576.75-18,864.54-3,691.71

Finding the Fourth Proportional to 12,576.75, 18,864.54 and 3,691.71

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Solution

The fourth proportional to 12,576.75, 18,864.54 and 3,691.71 is: 5,537.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.75 : 18,864.54 = 3,691.71 : x
  2. Step 2: Convert to fraction form
    12,576.75/18,864.54 = 3,691.71/x
  3. Step 3: Cross multiply
    12,576.75x = 18,864.54 × 3,691.71
  4. Step 4: Simplify right side
    12,576.75x = 69,642,410.96
  5. Step 5: Solve for x
    x = 69,642,410.96/12,576.75
  6. Step 6: Final answer
    x = 5,537.39

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1.5x scale

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.