Home / 8,812.31-13,218.83-2,238.67

Finding the Fourth Proportional to 8,812.31, 13,218.83 and 2,238.67

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Solution

The fourth proportional to 8,812.31, 13,218.83 and 2,238.67 is: 3,358.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.31 : 13,218.83 = 2,238.67 : x
  2. Step 2: Convert to fraction form
    8,812.31/13,218.83 = 2,238.67/x
  3. Step 3: Cross multiply
    8,812.31x = 13,218.83 × 2,238.67
  4. Step 4: Simplify right side
    8,812.31x = 29,592,562.31
  5. Step 5: Solve for x
    x = 29,592,562.31/8,812.31
  6. Step 6: Final answer
    x = 3,358.09

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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.