Home / 10,601.12-15,881.92-5,329.92

Finding the Fourth Proportional to 10,601.12, 15,881.92 and 5,329.92

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Solution

The fourth proportional to 10,601.12, 15,881.92 and 5,329.92 is: 7,984.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,601.12 : 15,881.92 = 5,329.92 : x
  2. Step 2: Convert to fraction form
    10,601.12/15,881.92 = 5,329.92/x
  3. Step 3: Cross multiply
    10,601.12x = 15,881.92 × 5,329.92
  4. Step 4: Simplify right side
    10,601.12x = 84,649,363.05
  5. Step 5: Solve for x
    x = 84,649,363.05/10,601.12
  6. Step 6: Final answer
    x = 7,984.95

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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.