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Finding the Fourth Proportional to 6,344.60, 9,516.12 and 2,647.28

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Solution

The fourth proportional to 6,344.60, 9,516.12 and 2,647.28 is: 3,970.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,344.60 : 9,516.12 = 2,647.28 : x
  2. Step 2: Convert to fraction form
    6,344.60/9,516.12 = 2,647.28/x
  3. Step 3: Cross multiply
    6,344.60x = 9,516.12 × 2,647.28
  4. Step 4: Simplify right side
    6,344.60x = 25,191,834.15
  5. Step 5: Solve for x
    x = 25,191,834.15/6,344.60
  6. Step 6: Final answer
    x = 3,970.59

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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.