Home / 10,713.20-16,069.80-2,815.70

Finding the Fourth Proportional to 10,713.20, 16,069.80 and 2,815.70

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Solution

The fourth proportional to 10,713.20, 16,069.80 and 2,815.70 is: 4,223.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,713.20 : 16,069.80 = 2,815.70 : x
  2. Step 2: Convert to fraction form
    10,713.20/16,069.80 = 2,815.70/x
  3. Step 3: Cross multiply
    10,713.20x = 16,069.80 × 2,815.70
  4. Step 4: Simplify right side
    10,713.20x = 45,247,735.86
  5. Step 5: Solve for x
    x = 45,247,735.86/10,713.20
  6. Step 6: Final answer
    x = 4,223.55

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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.