Home / 10,749.66-16,121.61-2,958.90

Finding the Fourth Proportional to 10,749.66, 16,121.61 and 2,958.90

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Solution

The fourth proportional to 10,749.66, 16,121.61 and 2,958.90 is: 4,437.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,749.66 : 16,121.61 = 2,958.90 : x
  2. Step 2: Convert to fraction form
    10,749.66/16,121.61 = 2,958.90/x
  3. Step 3: Cross multiply
    10,749.66x = 16,121.61 × 2,958.90
  4. Step 4: Simplify right side
    10,749.66x = 47,702,231.83
  5. Step 5: Solve for x
    x = 47,702,231.83/10,749.66
  6. Step 6: Final answer
    x = 4,437.56

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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.