Home / 10,947.75-16,421.67-2,739.75

Finding the Fourth Proportional to 10,947.75, 16,421.67 and 2,739.75

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Solution

The fourth proportional to 10,947.75, 16,421.67 and 2,739.75 is: 4,109.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,947.75 : 16,421.67 = 2,739.75 : x
  2. Step 2: Convert to fraction form
    10,947.75/16,421.67 = 2,739.75/x
  3. Step 3: Cross multiply
    10,947.75x = 16,421.67 × 2,739.75
  4. Step 4: Simplify right side
    10,947.75x = 44,991,270.38
  5. Step 5: Solve for x
    x = 44,991,270.38/10,947.75
  6. Step 6: Final answer
    x = 4,109.64

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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.