Home / 8,220.74-12,331.78-2,673.96

Finding the Fourth Proportional to 8,220.74, 12,331.78 and 2,673.96

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Solution

The fourth proportional to 8,220.74, 12,331.78 and 2,673.96 is: 4,011.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.74 : 12,331.78 = 2,673.96 : x
  2. Step 2: Convert to fraction form
    8,220.74/12,331.78 = 2,673.96/x
  3. Step 3: Cross multiply
    8,220.74x = 12,331.78 × 2,673.96
  4. Step 4: Simplify right side
    8,220.74x = 32,974,686.45
  5. Step 5: Solve for x
    x = 32,974,686.45/8,220.74
  6. Step 6: Final answer
    x = 4,011.16

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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.