Home / 13,067.52-18,017.28-11,382.72

Finding the Fourth Proportional to 13,067.52, 18,017.28 and 11,382.72

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Solution

The fourth proportional to 13,067.52, 18,017.28 and 11,382.72 is: 15,694.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,067.52 : 18,017.28 = 11,382.72 : x
  2. Step 2: Convert to fraction form
    13,067.52/18,017.28 = 11,382.72/x
  3. Step 3: Cross multiply
    13,067.52x = 18,017.28 × 11,382.72
  4. Step 4: Simplify right side
    13,067.52x = 205,085,653.40
  5. Step 5: Solve for x
    x = 205,085,653.40/13,067.52
  6. Step 6: Final answer
    x = 15,694.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.