Home / 8,963.73-12,364.20-5,781.09

Finding the Fourth Proportional to 8,963.73, 12,364.20 and 5,781.09

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Solution

The fourth proportional to 8,963.73, 12,364.20 and 5,781.09 is: 7,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,963.73 : 12,364.20 = 5,781.09 : x
  2. Step 2: Convert to fraction form
    8,963.73/12,364.20 = 5,781.09/x
  3. Step 3: Cross multiply
    8,963.73x = 12,364.20 × 5,781.09
  4. Step 4: Simplify right side
    8,963.73x = 71,478,552.98
  5. Step 5: Solve for x
    x = 71,478,552.98/8,963.73
  6. Step 6: Final answer
    x = 7,974.20

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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.