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Finding the Fourth Proportional to 12,835.28, 17,702.88 and 8,863.04

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Solution

The fourth proportional to 12,835.28, 17,702.88 and 8,863.04 is: 12,224.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,835.28 : 17,702.88 = 8,863.04 : x
  2. Step 2: Convert to fraction form
    12,835.28/17,702.88 = 8,863.04/x
  3. Step 3: Cross multiply
    12,835.28x = 17,702.88 × 8,863.04
  4. Step 4: Simplify right side
    12,835.28x = 156,901,333.56
  5. Step 5: Solve for x
    x = 156,901,333.56/12,835.28
  6. Step 6: Final answer
    x = 12,224.22

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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.