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Finding the Fourth Proportional to 8,706.60, 13,063.08 and 2,863.20

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Solution

The fourth proportional to 8,706.60, 13,063.08 and 2,863.20 is: 4,295.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.60 : 13,063.08 = 2,863.20 : x
  2. Step 2: Convert to fraction form
    8,706.60/13,063.08 = 2,863.20/x
  3. Step 3: Cross multiply
    8,706.60x = 13,063.08 × 2,863.20
  4. Step 4: Simplify right side
    8,706.60x = 37,402,210.66
  5. Step 5: Solve for x
    x = 37,402,210.66/8,706.60
  6. Step 6: Final answer
    x = 4,295.85

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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.