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Finding the Fourth Proportional to 7,707.50, 10,636.27 and 4,170.63

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Solution

The fourth proportional to 7,707.50, 10,636.27 and 4,170.63 is: 5,755.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,707.50 : 10,636.27 = 4,170.63 : x
  2. Step 2: Convert to fraction form
    7,707.50/10,636.27 = 4,170.63/x
  3. Step 3: Cross multiply
    7,707.50x = 10,636.27 × 4,170.63
  4. Step 4: Simplify right side
    7,707.50x = 44,359,946.75
  5. Step 5: Solve for x
    x = 44,359,946.75/7,707.50
  6. Step 6: Final answer
    x = 5,755.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.