Home / 11,086.70-16,631.68-3,970.40

Finding the Fourth Proportional to 11,086.70, 16,631.68 and 3,970.40

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Solution

The fourth proportional to 11,086.70, 16,631.68 and 3,970.40 is: 5,956.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,086.70 : 16,631.68 = 3,970.40 : x
  2. Step 2: Convert to fraction form
    11,086.70/16,631.68 = 3,970.40/x
  3. Step 3: Cross multiply
    11,086.70x = 16,631.68 × 3,970.40
  4. Step 4: Simplify right side
    11,086.70x = 66,034,422.27
  5. Step 5: Solve for x
    x = 66,034,422.27/11,086.70
  6. Step 6: Final answer
    x = 5,956.18

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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.