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Finding the Fourth Proportional to 18,229, 25,156.02 and 9,845.50

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Solution

The fourth proportional to 18,229, 25,156.02 and 9,845.50 is: 13,586.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,229 : 25,156.02 = 9,845.50 : x
  2. Step 2: Convert to fraction form
    18,229/25,156.02 = 9,845.50/x
  3. Step 3: Cross multiply
    18,229x = 25,156.02 × 9,845.50
  4. Step 4: Simplify right side
    18,229x = 247,673,594.91
  5. Step 5: Solve for x
    x = 247,673,594.91/18,229
  6. Step 6: Final answer
    x = 13,586.79

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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.