Home / 13,234.79-18,251.82-8,992.20

Finding the Fourth Proportional to 13,234.79, 18,251.82 and 8,992.20

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Solution

The fourth proportional to 13,234.79, 18,251.82 and 8,992.20 is: 12,400.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,234.79 : 18,251.82 = 8,992.20 : x
  2. Step 2: Convert to fraction form
    13,234.79/18,251.82 = 8,992.20/x
  3. Step 3: Cross multiply
    13,234.79x = 18,251.82 × 8,992.20
  4. Step 4: Simplify right side
    13,234.79x = 164,123,993.32
  5. Step 5: Solve for x
    x = 164,123,993.32/13,234.79
  6. Step 6: Final answer
    x = 12,400.95

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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.