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Finding the Fourth Proportional to 6,486.53, 9,729.80 and 2,104.33

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Solution

The fourth proportional to 6,486.53, 9,729.80 and 2,104.33 is: 3,156.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,486.53 : 9,729.80 = 2,104.33 : x
  2. Step 2: Convert to fraction form
    6,486.53/9,729.80 = 2,104.33/x
  3. Step 3: Cross multiply
    6,486.53x = 9,729.80 × 2,104.33
  4. Step 4: Simplify right side
    6,486.53x = 20,474,713.16
  5. Step 5: Solve for x
    x = 20,474,713.16/6,486.53
  6. Step 6: Final answer
    x = 3,156.50

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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.