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Finding the Fourth Proportional to 11,339.91, 15,644.03 and 6,622.11

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Solution

The fourth proportional to 11,339.91, 15,644.03 and 6,622.11 is: 9,135.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,339.91 : 15,644.03 = 6,622.11 : x
  2. Step 2: Convert to fraction form
    11,339.91/15,644.03 = 6,622.11/x
  3. Step 3: Cross multiply
    11,339.91x = 15,644.03 × 6,622.11
  4. Step 4: Simplify right side
    11,339.91x = 103,596,454.39
  5. Step 5: Solve for x
    x = 103,596,454.39/11,339.91
  6. Step 6: Final answer
    x = 9,135.56

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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.