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Finding the Fourth Proportional to 15,989.82, 23,988 and 5,608.86

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Solution

The fourth proportional to 15,989.82, 23,988 and 5,608.86 is: 8,414.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,989.82 : 23,988 = 5,608.86 : x
  2. Step 2: Convert to fraction form
    15,989.82/23,988 = 5,608.86/x
  3. Step 3: Cross multiply
    15,989.82x = 23,988 × 5,608.86
  4. Step 4: Simplify right side
    15,989.82x = 134,545,333.68
  5. Step 5: Solve for x
    x = 134,545,333.68/15,989.82
  6. Step 6: Final answer
    x = 8,414.44

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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.