Home / 10,928.76-16,391.13-2,923.62

Finding the Fourth Proportional to 10,928.76, 16,391.13 and 2,923.62

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Solution

The fourth proportional to 10,928.76, 16,391.13 and 2,923.62 is: 4,384.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,928.76 : 16,391.13 = 2,923.62 : x
  2. Step 2: Convert to fraction form
    10,928.76/16,391.13 = 2,923.62/x
  3. Step 3: Cross multiply
    10,928.76x = 16,391.13 × 2,923.62
  4. Step 4: Simplify right side
    10,928.76x = 47,921,435.49
  5. Step 5: Solve for x
    x = 47,921,435.49/10,928.76
  6. Step 6: Final answer
    x = 4,384.89

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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.