Home / 9,087.80-13,631.70-7,446.20

Finding the Fourth Proportional to 9,087.80, 13,631.70 and 7,446.20

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Solution

The fourth proportional to 9,087.80, 13,631.70 and 7,446.20 is: 11,169.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,087.80 : 13,631.70 = 7,446.20 : x
  2. Step 2: Convert to fraction form
    9,087.80/13,631.70 = 7,446.20/x
  3. Step 3: Cross multiply
    9,087.80x = 13,631.70 × 7,446.20
  4. Step 4: Simplify right side
    9,087.80x = 101,504,364.54
  5. Step 5: Solve for x
    x = 101,504,364.54/9,087.80
  6. Step 6: Final answer
    x = 11,169.30

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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.