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Finding the Fourth Proportional to 8,630.34, 12,945.68 and 2,707.10

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Solution

The fourth proportional to 8,630.34, 12,945.68 and 2,707.10 is: 4,060.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.34 : 12,945.68 = 2,707.10 : x
  2. Step 2: Convert to fraction form
    8,630.34/12,945.68 = 2,707.10/x
  3. Step 3: Cross multiply
    8,630.34x = 12,945.68 × 2,707.10
  4. Step 4: Simplify right side
    8,630.34x = 35,045,220.61
  5. Step 5: Solve for x
    x = 35,045,220.61/8,630.34
  6. Step 6: Final answer
    x = 4,060.70

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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.