Home / 12,238.46-18,358.40-3,472.69

Finding the Fourth Proportional to 12,238.46, 18,358.40 and 3,472.69

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Solution

The fourth proportional to 12,238.46, 18,358.40 and 3,472.69 is: 5,209.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,238.46 : 18,358.40 = 3,472.69 : x
  2. Step 2: Convert to fraction form
    12,238.46/18,358.40 = 3,472.69/x
  3. Step 3: Cross multiply
    12,238.46x = 18,358.40 × 3,472.69
  4. Step 4: Simplify right side
    12,238.46x = 63,752,968.84
  5. Step 5: Solve for x
    x = 63,752,968.84/12,238.46
  6. Step 6: Final answer
    x = 5,209.23

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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.