Home / 16,138.83-22,270.57-8,968.31

Finding the Fourth Proportional to 16,138.83, 22,270.57 and 8,968.31

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Solution

The fourth proportional to 16,138.83, 22,270.57 and 8,968.31 is: 12,375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,138.83 : 22,270.57 = 8,968.31 : x
  2. Step 2: Convert to fraction form
    16,138.83/22,270.57 = 8,968.31/x
  3. Step 3: Cross multiply
    16,138.83x = 22,270.57 × 8,968.31
  4. Step 4: Simplify right side
    16,138.83x = 199,729,375.64
  5. Step 5: Solve for x
    x = 199,729,375.64/16,138.83
  6. Step 6: Final answer
    x = 12,375.70

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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.