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Finding the Fourth Proportional to 16,580.76, 22,879.71 and 9,408.39

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Solution

The fourth proportional to 16,580.76, 22,879.71 and 9,408.39 is: 12,982.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,580.76 : 22,879.71 = 9,408.39 : x
  2. Step 2: Convert to fraction form
    16,580.76/22,879.71 = 9,408.39/x
  3. Step 3: Cross multiply
    16,580.76x = 22,879.71 × 9,408.39
  4. Step 4: Simplify right side
    16,580.76x = 215,261,234.77
  5. Step 5: Solve for x
    x = 215,261,234.77/16,580.76
  6. Step 6: Final answer
    x = 12,982.59

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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.