Home / 16,105.12-22,226.20-8,935.40

Finding the Fourth Proportional to 16,105.12, 22,226.20 and 8,935.40

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Solution

The fourth proportional to 16,105.12, 22,226.20 and 8,935.40 is: 12,331.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,105.12 : 22,226.20 = 8,935.40 : x
  2. Step 2: Convert to fraction form
    16,105.12/22,226.20 = 8,935.40/x
  3. Step 3: Cross multiply
    16,105.12x = 22,226.20 × 8,935.40
  4. Step 4: Simplify right side
    16,105.12x = 198,599,987.48
  5. Step 5: Solve for x
    x = 198,599,987.48/16,105.12
  6. Step 6: Final answer
    x = 12,331.48

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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.