Home / 8,209.85-12,317.40-2,941.31

Finding the Fourth Proportional to 8,209.85, 12,317.40 and 2,941.31

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Solution

The fourth proportional to 8,209.85, 12,317.40 and 2,941.31 is: 4,412.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,209.85 : 12,317.40 = 2,941.31 : x
  2. Step 2: Convert to fraction form
    8,209.85/12,317.40 = 2,941.31/x
  3. Step 3: Cross multiply
    8,209.85x = 12,317.40 × 2,941.31
  4. Step 4: Simplify right side
    8,209.85x = 36,229,291.79
  5. Step 5: Solve for x
    x = 36,229,291.79/8,209.85
  6. Step 6: Final answer
    x = 4,412.91

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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.