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Finding the Fourth Proportional to 6,498.76, 9,747.12 and 2,115.58

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Solution

The fourth proportional to 6,498.76, 9,747.12 and 2,115.58 is: 3,173.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,498.76 : 9,747.12 = 2,115.58 : x
  2. Step 2: Convert to fraction form
    6,498.76/9,747.12 = 2,115.58/x
  3. Step 3: Cross multiply
    6,498.76x = 9,747.12 × 2,115.58
  4. Step 4: Simplify right side
    6,498.76x = 20,620,812.13
  5. Step 5: Solve for x
    x = 20,620,812.13/6,498.76
  6. Step 6: Final answer
    x = 3,173.04

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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.