Home / 8,540.22-12,812.49-3,607.32

Finding the Fourth Proportional to 8,540.22, 12,812.49 and 3,607.32

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Solution

The fourth proportional to 8,540.22, 12,812.49 and 3,607.32 is: 5,411.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.22 : 12,812.49 = 3,607.32 : x
  2. Step 2: Convert to fraction form
    8,540.22/12,812.49 = 3,607.32/x
  3. Step 3: Cross multiply
    8,540.22x = 12,812.49 × 3,607.32
  4. Step 4: Simplify right side
    8,540.22x = 46,218,751.43
  5. Step 5: Solve for x
    x = 46,218,751.43/8,540.22
  6. Step 6: Final answer
    x = 5,411.89

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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.