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Finding the Fourth Proportional to 11,438.92, 17,142.06 and 6,759.88

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Solution

The fourth proportional to 11,438.92, 17,142.06 and 6,759.88 is: 10,130.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,438.92 : 17,142.06 = 6,759.88 : x
  2. Step 2: Convert to fraction form
    11,438.92/17,142.06 = 6,759.88/x
  3. Step 3: Cross multiply
    11,438.92x = 17,142.06 × 6,759.88
  4. Step 4: Simplify right side
    11,438.92x = 115,878,268.55
  5. Step 5: Solve for x
    x = 115,878,268.55/11,438.92
  6. Step 6: Final answer
    x = 10,130.18

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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.