Home / 12,306.36-18,449.58-3,868.56

Finding the Fourth Proportional to 12,306.36, 18,449.58 and 3,868.56

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Solution

The fourth proportional to 12,306.36, 18,449.58 and 3,868.56 is: 5,799.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,306.36 : 18,449.58 = 3,868.56 : x
  2. Step 2: Convert to fraction form
    12,306.36/18,449.58 = 3,868.56/x
  3. Step 3: Cross multiply
    12,306.36x = 18,449.58 × 3,868.56
  4. Step 4: Simplify right side
    12,306.36x = 71,373,307.20
  5. Step 5: Solve for x
    x = 71,373,307.20/12,306.36
  6. Step 6: Final answer
    x = 5,799.71

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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.