Home / 11,581.81-17,372.56-2,816.70

Finding the Fourth Proportional to 11,581.81, 17,372.56 and 2,816.70

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Solution

The fourth proportional to 11,581.81, 17,372.56 and 2,816.70 is: 4,225.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,581.81 : 17,372.56 = 2,816.70 : x
  2. Step 2: Convert to fraction form
    11,581.81/17,372.56 = 2,816.70/x
  3. Step 3: Cross multiply
    11,581.81x = 17,372.56 × 2,816.70
  4. Step 4: Simplify right side
    11,581.81x = 48,933,289.75
  5. Step 5: Solve for x
    x = 48,933,289.75/11,581.81
  6. Step 6: Final answer
    x = 4,225.01

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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.