Home / 8,258.57-12,378.30-3,806.93

Finding the Fourth Proportional to 8,258.57, 12,378.30 and 3,806.93

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Solution

The fourth proportional to 8,258.57, 12,378.30 and 3,806.93 is: 5,705.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.57 : 12,378.30 = 3,806.93 : x
  2. Step 2: Convert to fraction form
    8,258.57/12,378.30 = 3,806.93/x
  3. Step 3: Cross multiply
    8,258.57x = 12,378.30 × 3,806.93
  4. Step 4: Simplify right side
    8,258.57x = 47,123,321.62
  5. Step 5: Solve for x
    x = 47,123,321.62/8,258.57
  6. Step 6: Final answer
    x = 5,705.99

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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.