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Finding the Fourth Proportional to 8,302.16, 12,455.16 and 2,755.44

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Solution

The fourth proportional to 8,302.16, 12,455.16 and 2,755.44 is: 4,133.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,302.16 : 12,455.16 = 2,755.44 : x
  2. Step 2: Convert to fraction form
    8,302.16/12,455.16 = 2,755.44/x
  3. Step 3: Cross multiply
    8,302.16x = 12,455.16 × 2,755.44
  4. Step 4: Simplify right side
    8,302.16x = 34,319,446.07
  5. Step 5: Solve for x
    x = 34,319,446.07/8,302.16
  6. Step 6: Final answer
    x = 4,133.80

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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.