Home / 8,976.27-13,455.18-3,428.12

Finding the Fourth Proportional to 8,976.27, 13,455.18 and 3,428.12

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Solution

The fourth proportional to 8,976.27, 13,455.18 and 3,428.12 is: 5,138.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.27 : 13,455.18 = 3,428.12 : x
  2. Step 2: Convert to fraction form
    8,976.27/13,455.18 = 3,428.12/x
  3. Step 3: Cross multiply
    8,976.27x = 13,455.18 × 3,428.12
  4. Step 4: Simplify right side
    8,976.27x = 46,125,990.84
  5. Step 5: Solve for x
    x = 46,125,990.84/8,976.27
  6. Step 6: Final answer
    x = 5,138.66

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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.