Home / 12,124.38-18,187.38-3,358.56

Finding the Fourth Proportional to 12,124.38, 18,187.38 and 3,358.56

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Solution

The fourth proportional to 12,124.38, 18,187.38 and 3,358.56 is: 5,038.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.38 : 18,187.38 = 3,358.56 : x
  2. Step 2: Convert to fraction form
    12,124.38/18,187.38 = 3,358.56/x
  3. Step 3: Cross multiply
    12,124.38x = 18,187.38 × 3,358.56
  4. Step 4: Simplify right side
    12,124.38x = 61,083,406.97
  5. Step 5: Solve for x
    x = 61,083,406.97/12,124.38
  6. Step 6: Final answer
    x = 5,038.06

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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.