Home / 16,190.80-22,345.14-9,117.88

Finding the Fourth Proportional to 16,190.80, 22,345.14 and 9,117.88

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Solution

The fourth proportional to 16,190.80, 22,345.14 and 9,117.88 is: 12,583.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,190.80 : 22,345.14 = 9,117.88 : x
  2. Step 2: Convert to fraction form
    16,190.80/22,345.14 = 9,117.88/x
  3. Step 3: Cross multiply
    16,190.80x = 22,345.14 × 9,117.88
  4. Step 4: Simplify right side
    16,190.80x = 203,740,305.10
  5. Step 5: Solve for x
    x = 203,740,305.10/16,190.80
  6. Step 6: Final answer
    x = 12,583.71

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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.