Home / 7,427.08-11,139.18-3,728.32

Finding the Fourth Proportional to 7,427.08, 11,139.18 and 3,728.32

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Solution

The fourth proportional to 7,427.08, 11,139.18 and 3,728.32 is: 5,591.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.08 : 11,139.18 = 3,728.32 : x
  2. Step 2: Convert to fraction form
    7,427.08/11,139.18 = 3,728.32/x
  3. Step 3: Cross multiply
    7,427.08x = 11,139.18 × 3,728.32
  4. Step 4: Simplify right side
    7,427.08x = 41,530,427.58
  5. Step 5: Solve for x
    x = 41,530,427.58/7,427.08
  6. Step 6: Final answer
    x = 5,591.76

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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.