Home / 12,253.12-18,380.40-4,045.12

Finding the Fourth Proportional to 12,253.12, 18,380.40 and 4,045.12

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Solution

The fourth proportional to 12,253.12, 18,380.40 and 4,045.12 is: 6,067.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.12 : 18,380.40 = 4,045.12 : x
  2. Step 2: Convert to fraction form
    12,253.12/18,380.40 = 4,045.12/x
  3. Step 3: Cross multiply
    12,253.12x = 18,380.40 × 4,045.12
  4. Step 4: Simplify right side
    12,253.12x = 74,350,923.65
  5. Step 5: Solve for x
    x = 74,350,923.65/12,253.12
  6. Step 6: Final answer
    x = 6,067.92

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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.