Home / 12,576.38-18,864.55-3,342.38

Finding the Fourth Proportional to 12,576.38, 18,864.55 and 3,342.38

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Solution

The fourth proportional to 12,576.38, 18,864.55 and 3,342.38 is: 5,013.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.38 : 18,864.55 = 3,342.38 : x
  2. Step 2: Convert to fraction form
    12,576.38/18,864.55 = 3,342.38/x
  3. Step 3: Cross multiply
    12,576.38x = 18,864.55 × 3,342.38
  4. Step 4: Simplify right side
    12,576.38x = 63,052,494.63
  5. Step 5: Solve for x
    x = 63,052,494.63/12,576.38
  6. Step 6: Final answer
    x = 5,013.56

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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.