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Finding the Fourth Proportional to 11,472.78, 17,209.14 and 7,576.26

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Solution

The fourth proportional to 11,472.78, 17,209.14 and 7,576.26 is: 11,364.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,472.78 : 17,209.14 = 7,576.26 : x
  2. Step 2: Convert to fraction form
    11,472.78/17,209.14 = 7,576.26/x
  3. Step 3: Cross multiply
    11,472.78x = 17,209.14 × 7,576.26
  4. Step 4: Simplify right side
    11,472.78x = 130,380,919.02
  5. Step 5: Solve for x
    x = 130,380,919.02/11,472.78
  6. Step 6: Final answer
    x = 11,364.37

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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.