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Finding the Fourth Proportional to 6,647.34, 9,971.04 and 1,716.64

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Solution

The fourth proportional to 6,647.34, 9,971.04 and 1,716.64 is: 2,574.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647.34 : 9,971.04 = 1,716.64 : x
  2. Step 2: Convert to fraction form
    6,647.34/9,971.04 = 1,716.64/x
  3. Step 3: Cross multiply
    6,647.34x = 9,971.04 × 1,716.64
  4. Step 4: Simplify right side
    6,647.34x = 17,116,665.47
  5. Step 5: Solve for x
    x = 17,116,665.47/6,647.34
  6. Step 6: Final answer
    x = 2,574.96

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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.