Home / 8,172.35-12,259.67-3,242.49

Finding the Fourth Proportional to 8,172.35, 12,259.67 and 3,242.49

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Solution

The fourth proportional to 8,172.35, 12,259.67 and 3,242.49 is: 4,864.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.35 : 12,259.67 = 3,242.49 : x
  2. Step 2: Convert to fraction form
    8,172.35/12,259.67 = 3,242.49/x
  3. Step 3: Cross multiply
    8,172.35x = 12,259.67 × 3,242.49
  4. Step 4: Simplify right side
    8,172.35x = 39,751,841.17
  5. Step 5: Solve for x
    x = 39,751,841.17/8,172.35
  6. Step 6: Final answer
    x = 4,864.19

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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.