Home / 11,691.30-17,527.08-5,112.48

Finding the Fourth Proportional to 11,691.30, 17,527.08 and 5,112.48

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Solution

The fourth proportional to 11,691.30, 17,527.08 and 5,112.48 is: 7,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,691.30 : 17,527.08 = 5,112.48 : x
  2. Step 2: Convert to fraction form
    11,691.30/17,527.08 = 5,112.48/x
  3. Step 3: Cross multiply
    11,691.30x = 17,527.08 × 5,112.48
  4. Step 4: Simplify right side
    11,691.30x = 89,606,845.96
  5. Step 5: Solve for x
    x = 89,606,845.96/11,691.30
  6. Step 6: Final answer
    x = 7,664.40

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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.