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Finding the Fourth Proportional to 10,604.30, 15,906.45 and 8,401.10

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Solution

The fourth proportional to 10,604.30, 15,906.45 and 8,401.10 is: 12,601.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,604.30 : 15,906.45 = 8,401.10 : x
  2. Step 2: Convert to fraction form
    10,604.30/15,906.45 = 8,401.10/x
  3. Step 3: Cross multiply
    10,604.30x = 15,906.45 × 8,401.10
  4. Step 4: Simplify right side
    10,604.30x = 133,631,677.10
  5. Step 5: Solve for x
    x = 133,631,677.10/10,604.30
  6. Step 6: Final answer
    x = 12,601.65

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Similar ratio
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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.