Home / 8,791.08-12,131.97-4,812.18

Finding the Fourth Proportional to 8,791.08, 12,131.97 and 4,812.18

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Solution

The fourth proportional to 8,791.08, 12,131.97 and 4,812.18 is: 6,640.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.08 : 12,131.97 = 4,812.18 : x
  2. Step 2: Convert to fraction form
    8,791.08/12,131.97 = 4,812.18/x
  3. Step 3: Cross multiply
    8,791.08x = 12,131.97 × 4,812.18
  4. Step 4: Simplify right side
    8,791.08x = 58,381,223.39
  5. Step 5: Solve for x
    x = 58,381,223.39/8,791.08
  6. Step 6: Final answer
    x = 6,640.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.