Home / 13,067.43-18,033.40-7,690.24

Finding the Fourth Proportional to 13,067.43, 18,033.40 and 7,690.24

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Solution

The fourth proportional to 13,067.43, 18,033.40 and 7,690.24 is: 10,612.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,067.43 : 18,033.40 = 7,690.24 : x
  2. Step 2: Convert to fraction form
    13,067.43/18,033.40 = 7,690.24/x
  3. Step 3: Cross multiply
    13,067.43x = 18,033.40 × 7,690.24
  4. Step 4: Simplify right side
    13,067.43x = 138,681,206.17
  5. Step 5: Solve for x
    x = 138,681,206.17/13,067.43
  6. Step 6: Final answer
    x = 10,612.74

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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.