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Finding the Fourth Proportional to 8,806.64, 13,207.78 and 2,963.12

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Solution

The fourth proportional to 8,806.64, 13,207.78 and 2,963.12 is: 4,443.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806.64 : 13,207.78 = 2,963.12 : x
  2. Step 2: Convert to fraction form
    8,806.64/13,207.78 = 2,963.12/x
  3. Step 3: Cross multiply
    8,806.64x = 13,207.78 × 2,963.12
  4. Step 4: Simplify right side
    8,806.64x = 39,136,237.07
  5. Step 5: Solve for x
    x = 39,136,237.07/8,806.64
  6. Step 6: Final answer
    x = 4,443.95

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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.