Home / 8,503.08-12,756.42-2,660.13

Finding the Fourth Proportional to 8,503.08, 12,756.42 and 2,660.13

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Solution

The fourth proportional to 8,503.08, 12,756.42 and 2,660.13 is: 3,990.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,503.08 : 12,756.42 = 2,660.13 : x
  2. Step 2: Convert to fraction form
    8,503.08/12,756.42 = 2,660.13/x
  3. Step 3: Cross multiply
    8,503.08x = 12,756.42 × 2,660.13
  4. Step 4: Simplify right side
    8,503.08x = 33,933,735.53
  5. Step 5: Solve for x
    x = 33,933,735.53/8,503.08
  6. Step 6: Final answer
    x = 3,990.76

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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.