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Finding the Fourth Proportional to 6,667, 9,995.10 and 2,774.32

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Solution

The fourth proportional to 6,667, 9,995.10 and 2,774.32 is: 4,159.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,667 : 9,995.10 = 2,774.32 : x
  2. Step 2: Convert to fraction form
    6,667/9,995.10 = 2,774.32/x
  3. Step 3: Cross multiply
    6,667x = 9,995.10 × 2,774.32
  4. Step 4: Simplify right side
    6,667x = 27,729,605.83
  5. Step 5: Solve for x
    x = 27,729,605.83/6,667
  6. Step 6: Final answer
    x = 4,159.23

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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.