Home / 7,380.56-11,074.11-3,869.72

Finding the Fourth Proportional to 7,380.56, 11,074.11 and 3,869.72

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Solution

The fourth proportional to 7,380.56, 11,074.11 and 3,869.72 is: 5,806.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380.56 : 11,074.11 = 3,869.72 : x
  2. Step 2: Convert to fraction form
    7,380.56/11,074.11 = 3,869.72/x
  3. Step 3: Cross multiply
    7,380.56x = 11,074.11 × 3,869.72
  4. Step 4: Simplify right side
    7,380.56x = 42,853,749.77
  5. Step 5: Solve for x
    x = 42,853,749.77/7,380.56
  6. Step 6: Final answer
    x = 5,806.30

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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.