Home / 8,981.76-13,474.56-6,791.36

Finding the Fourth Proportional to 8,981.76, 13,474.56 and 6,791.36

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Solution

The fourth proportional to 8,981.76, 13,474.56 and 6,791.36 is: 10,188.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,981.76 : 13,474.56 = 6,791.36 : x
  2. Step 2: Convert to fraction form
    8,981.76/13,474.56 = 6,791.36/x
  3. Step 3: Cross multiply
    8,981.76x = 13,474.56 × 6,791.36
  4. Step 4: Simplify right side
    8,981.76x = 91,510,587.80
  5. Step 5: Solve for x
    x = 91,510,587.80/8,981.76
  6. Step 6: Final answer
    x = 10,188.49

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1.5x scale

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.