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Finding the Fourth Proportional to 16,842.87, 23,241.87 and 9,289.49

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Solution

The fourth proportional to 16,842.87, 23,241.87 and 9,289.49 is: 12,818.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,842.87 : 23,241.87 = 9,289.49 : x
  2. Step 2: Convert to fraction form
    16,842.87/23,241.87 = 9,289.49/x
  3. Step 3: Cross multiply
    16,842.87x = 23,241.87 × 9,289.49
  4. Step 4: Simplify right side
    16,842.87x = 215,905,002.74
  5. Step 5: Solve for x
    x = 215,905,002.74/16,842.87
  6. Step 6: Final answer
    x = 12,818.78

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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.