Home / 8,813.31-13,220.33-2,239.67

Finding the Fourth Proportional to 8,813.31, 13,220.33 and 2,239.67

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Solution

The fourth proportional to 8,813.31, 13,220.33 and 2,239.67 is: 3,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.31 : 13,220.33 = 2,239.67 : x
  2. Step 2: Convert to fraction form
    8,813.31/13,220.33 = 2,239.67/x
  3. Step 3: Cross multiply
    8,813.31x = 13,220.33 × 2,239.67
  4. Step 4: Simplify right side
    8,813.31x = 29,609,176.49
  5. Step 5: Solve for x
    x = 29,609,176.49/8,813.31
  6. Step 6: Final answer
    x = 3,359.60

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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.