Home / 8,380.29-12,571.26-2,457.30

Finding the Fourth Proportional to 8,380.29, 12,571.26 and 2,457.30

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Solution

The fourth proportional to 8,380.29, 12,571.26 and 2,457.30 is: 3,686.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380.29 : 12,571.26 = 2,457.30 : x
  2. Step 2: Convert to fraction form
    8,380.29/12,571.26 = 2,457.30/x
  3. Step 3: Cross multiply
    8,380.29x = 12,571.26 × 2,457.30
  4. Step 4: Simplify right side
    8,380.29x = 30,891,357.20
  5. Step 5: Solve for x
    x = 30,891,357.20/8,380.29
  6. Step 6: Final answer
    x = 3,686.19

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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.