Home / 8,140.29-12,202.12-3,207.93

Finding the Fourth Proportional to 8,140.29, 12,202.12 and 3,207.93

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Solution

The fourth proportional to 8,140.29, 12,202.12 and 3,207.93 is: 4,808.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.29 : 12,202.12 = 3,207.93 : x
  2. Step 2: Convert to fraction form
    8,140.29/12,202.12 = 3,207.93/x
  3. Step 3: Cross multiply
    8,140.29x = 12,202.12 × 3,207.93
  4. Step 4: Simplify right side
    8,140.29x = 39,143,546.81
  5. Step 5: Solve for x
    x = 39,143,546.81/8,140.29
  6. Step 6: Final answer
    x = 4,808.62

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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.