Home / 8,538.22-12,809.49-3,605.32

Finding the Fourth Proportional to 8,538.22, 12,809.49 and 3,605.32

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Solution

The fourth proportional to 8,538.22, 12,809.49 and 3,605.32 is: 5,408.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538.22 : 12,809.49 = 3,605.32 : x
  2. Step 2: Convert to fraction form
    8,538.22/12,809.49 = 3,605.32/x
  3. Step 3: Cross multiply
    8,538.22x = 12,809.49 × 3,605.32
  4. Step 4: Simplify right side
    8,538.22x = 46,182,310.49
  5. Step 5: Solve for x
    x = 46,182,310.49/8,538.22
  6. Step 6: Final answer
    x = 5,408.89

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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.