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Finding the Fourth Proportional to 15,906.80, 23,860.20 and 11,241.20

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Solution

The fourth proportional to 15,906.80, 23,860.20 and 11,241.20 is: 16,861.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,906.80 : 23,860.20 = 11,241.20 : x
  2. Step 2: Convert to fraction form
    15,906.80/23,860.20 = 11,241.20/x
  3. Step 3: Cross multiply
    15,906.80x = 23,860.20 × 11,241.20
  4. Step 4: Simplify right side
    15,906.80x = 268,217,280.24
  5. Step 5: Solve for x
    x = 268,217,280.24/15,906.80
  6. Step 6: Final answer
    x = 16,861.80

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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.