Home / 10,947.80-16,425.20-3,923.08

Finding the Fourth Proportional to 10,947.80, 16,425.20 and 3,923.08

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Solution

The fourth proportional to 10,947.80, 16,425.20 and 3,923.08 is: 5,885.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,947.80 : 16,425.20 = 3,923.08 : x
  2. Step 2: Convert to fraction form
    10,947.80/16,425.20 = 3,923.08/x
  3. Step 3: Cross multiply
    10,947.80x = 16,425.20 × 3,923.08
  4. Step 4: Simplify right side
    10,947.80x = 64,437,373.62
  5. Step 5: Solve for x
    x = 64,437,373.62/10,947.80
  6. Step 6: Final answer
    x = 5,885.87

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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.