Home / 9,190.30-13,785.45-7,764.70

Finding the Fourth Proportional to 9,190.30, 13,785.45 and 7,764.70

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Solution

The fourth proportional to 9,190.30, 13,785.45 and 7,764.70 is: 11,647.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.30 : 13,785.45 = 7,764.70 : x
  2. Step 2: Convert to fraction form
    9,190.30/13,785.45 = 7,764.70/x
  3. Step 3: Cross multiply
    9,190.30x = 13,785.45 × 7,764.70
  4. Step 4: Simplify right side
    9,190.30x = 107,039,883.62
  5. Step 5: Solve for x
    x = 107,039,883.62/9,190.30
  6. Step 6: Final answer
    x = 11,647.05

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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.