Home / 12,045.28-18,067.38-3,280.24

Finding the Fourth Proportional to 12,045.28, 18,067.38 and 3,280.24

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Solution

The fourth proportional to 12,045.28, 18,067.38 and 3,280.24 is: 4,920.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.28 : 18,067.38 = 3,280.24 : x
  2. Step 2: Convert to fraction form
    12,045.28/18,067.38 = 3,280.24/x
  3. Step 3: Cross multiply
    12,045.28x = 18,067.38 × 3,280.24
  4. Step 4: Simplify right side
    12,045.28x = 59,265,342.57
  5. Step 5: Solve for x
    x = 59,265,342.57/12,045.28
  6. Step 6: Final answer
    x = 4,920.21

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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.