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Finding the Fourth Proportional to 10,999.87, 16,499.80 and 3,604.37

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Solution

The fourth proportional to 10,999.87, 16,499.80 and 3,604.37 is: 5,406.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.87 : 16,499.80 = 3,604.37 : x
  2. Step 2: Convert to fraction form
    10,999.87/16,499.80 = 3,604.37/x
  3. Step 3: Cross multiply
    10,999.87x = 16,499.80 × 3,604.37
  4. Step 4: Simplify right side
    10,999.87x = 59,471,301.63
  5. Step 5: Solve for x
    x = 59,471,301.63/10,999.87
  6. Step 6: Final answer
    x = 5,406.55

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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.