Home / 12,238.40-18,358.30-3,472.63

Finding the Fourth Proportional to 12,238.40, 18,358.30 and 3,472.63

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Solution

The fourth proportional to 12,238.40, 18,358.30 and 3,472.63 is: 5,209.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,238.40 : 18,358.30 = 3,472.63 : x
  2. Step 2: Convert to fraction form
    12,238.40/18,358.30 = 3,472.63/x
  3. Step 3: Cross multiply
    12,238.40x = 18,358.30 × 3,472.63
  4. Step 4: Simplify right side
    12,238.40x = 63,751,583.33
  5. Step 5: Solve for x
    x = 63,751,583.33/12,238.40
  6. Step 6: Final answer
    x = 5,209.14

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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.