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Finding the Fourth Proportional to 12,601.70, 18,902.55 and 8,224.10

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Solution

The fourth proportional to 12,601.70, 18,902.55 and 8,224.10 is: 12,336.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,601.70 : 18,902.55 = 8,224.10 : x
  2. Step 2: Convert to fraction form
    12,601.70/18,902.55 = 8,224.10/x
  3. Step 3: Cross multiply
    12,601.70x = 18,902.55 × 8,224.10
  4. Step 4: Simplify right side
    12,601.70x = 155,456,461.46
  5. Step 5: Solve for x
    x = 155,456,461.46/12,601.70
  6. Step 6: Final answer
    x = 12,336.15

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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.