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Finding the Fourth Proportional to 6,643.75, 9,965.61 and 1,713.38

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Solution

The fourth proportional to 6,643.75, 9,965.61 and 1,713.38 is: 2,570.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.75 : 9,965.61 = 1,713.38 : x
  2. Step 2: Convert to fraction form
    6,643.75/9,965.61 = 1,713.38/x
  3. Step 3: Cross multiply
    6,643.75x = 9,965.61 × 1,713.38
  4. Step 4: Simplify right side
    6,643.75x = 17,074,850.24
  5. Step 5: Solve for x
    x = 17,074,850.24/6,643.75
  6. Step 6: Final answer
    x = 2,570.06

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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.