Home / 8,321.70-12,470.22-3,637.38

Finding the Fourth Proportional to 8,321.70, 12,470.22 and 3,637.38

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Solution

The fourth proportional to 8,321.70, 12,470.22 and 3,637.38 is: 5,450.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321.70 : 12,470.22 = 3,637.38 : x
  2. Step 2: Convert to fraction form
    8,321.70/12,470.22 = 3,637.38/x
  3. Step 3: Cross multiply
    8,321.70x = 12,470.22 × 3,637.38
  4. Step 4: Simplify right side
    8,321.70x = 45,358,928.82
  5. Step 5: Solve for x
    x = 45,358,928.82/8,321.70
  6. Step 6: Final answer
    x = 5,450.68

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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.