Home / 8,270.70-12,399.57-5,665.74

Finding the Fourth Proportional to 8,270.70, 12,399.57 and 5,665.74

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Solution

The fourth proportional to 8,270.70, 12,399.57 and 5,665.74 is: 8,494.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270.70 : 12,399.57 = 5,665.74 : x
  2. Step 2: Convert to fraction form
    8,270.70/12,399.57 = 5,665.74/x
  3. Step 3: Cross multiply
    8,270.70x = 12,399.57 × 5,665.74
  4. Step 4: Simplify right side
    8,270.70x = 70,252,739.73
  5. Step 5: Solve for x
    x = 70,252,739.73/8,270.70
  6. Step 6: Final answer
    x = 8,494.17

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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.