Home / 10,873.80-16,305.12-5,318.76

Finding the Fourth Proportional to 10,873.80, 16,305.12 and 5,318.76

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Solution

The fourth proportional to 10,873.80, 16,305.12 and 5,318.76 is: 7,975.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,873.80 : 16,305.12 = 5,318.76 : x
  2. Step 2: Convert to fraction form
    10,873.80/16,305.12 = 5,318.76/x
  3. Step 3: Cross multiply
    10,873.80x = 16,305.12 × 5,318.76
  4. Step 4: Simplify right side
    10,873.80x = 86,723,020.05
  5. Step 5: Solve for x
    x = 86,723,020.05/10,873.80
  6. Step 6: Final answer
    x = 7,975.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.