Home / 8,412.21-12,620.12-2,569.25

Finding the Fourth Proportional to 8,412.21, 12,620.12 and 2,569.25

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Solution

The fourth proportional to 8,412.21, 12,620.12 and 2,569.25 is: 3,854.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.21 : 12,620.12 = 2,569.25 : x
  2. Step 2: Convert to fraction form
    8,412.21/12,620.12 = 2,569.25/x
  3. Step 3: Cross multiply
    8,412.21x = 12,620.12 × 2,569.25
  4. Step 4: Simplify right side
    8,412.21x = 32,424,230.46
  5. Step 5: Solve for x
    x = 32,424,230.46/8,412.21
  6. Step 6: Final answer
    x = 3,854.42

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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.