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Finding the Fourth Proportional to 18,000.60, 24,840.24 and 11,289.96

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Solution

The fourth proportional to 18,000.60, 24,840.24 and 11,289.96 is: 15,579.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.60 : 24,840.24 = 11,289.96 : x
  2. Step 2: Convert to fraction form
    18,000.60/24,840.24 = 11,289.96/x
  3. Step 3: Cross multiply
    18,000.60x = 24,840.24 × 11,289.96
  4. Step 4: Simplify right side
    18,000.60x = 280,445,315.99
  5. Step 5: Solve for x
    x = 280,445,315.99/18,000.60
  6. Step 6: Final answer
    x = 15,579.78

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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.