Home / 11,079.76-16,619.64-3,288.50

Finding the Fourth Proportional to 11,079.76, 16,619.64 and 3,288.50

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Solution

The fourth proportional to 11,079.76, 16,619.64 and 3,288.50 is: 4,932.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.76 : 16,619.64 = 3,288.50 : x
  2. Step 2: Convert to fraction form
    11,079.76/16,619.64 = 3,288.50/x
  3. Step 3: Cross multiply
    11,079.76x = 16,619.64 × 3,288.50
  4. Step 4: Simplify right side
    11,079.76x = 54,653,686.14
  5. Step 5: Solve for x
    x = 54,653,686.14/11,079.76
  6. Step 6: Final answer
    x = 4,932.75

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Double scale
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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.