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Finding the Fourth Proportional to 11,915.67, 16,425.44 and 9,393.27

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Solution

The fourth proportional to 11,915.67, 16,425.44 and 9,393.27 is: 12,948.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,915.67 : 16,425.44 = 9,393.27 : x
  2. Step 2: Convert to fraction form
    11,915.67/16,425.44 = 9,393.27/x
  3. Step 3: Cross multiply
    11,915.67x = 16,425.44 × 9,393.27
  4. Step 4: Simplify right side
    11,915.67x = 154,288,545.82
  5. Step 5: Solve for x
    x = 154,288,545.82/11,915.67
  6. Step 6: Final answer
    x = 12,948.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.