Home / 16,138.78-22,275.75-9,067.48

Finding the Fourth Proportional to 16,138.78, 22,275.75 and 9,067.48

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Solution

The fourth proportional to 16,138.78, 22,275.75 and 9,067.48 is: 12,515.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,138.78 : 22,275.75 = 9,067.48 : x
  2. Step 2: Convert to fraction form
    16,138.78/22,275.75 = 9,067.48/x
  3. Step 3: Cross multiply
    16,138.78x = 22,275.75 × 9,067.48
  4. Step 4: Simplify right side
    16,138.78x = 201,984,917.61
  5. Step 5: Solve for x
    x = 201,984,917.61/16,138.78
  6. Step 6: Final answer
    x = 12,515.50

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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.