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Finding the Fourth Proportional to 8,863.75, 13,290.09 and 3,314.17

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Solution

The fourth proportional to 8,863.75, 13,290.09 and 3,314.17 is: 4,969.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863.75 : 13,290.09 = 3,314.17 : x
  2. Step 2: Convert to fraction form
    8,863.75/13,290.09 = 3,314.17/x
  3. Step 3: Cross multiply
    8,863.75x = 13,290.09 × 3,314.17
  4. Step 4: Simplify right side
    8,863.75x = 44,045,617.58
  5. Step 5: Solve for x
    x = 44,045,617.58/8,863.75
  6. Step 6: Final answer
    x = 4,969.19

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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.