Home / 8,367.68-12,555.14-3,172.34

Finding the Fourth Proportional to 8,367.68, 12,555.14 and 3,172.34

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Solution

The fourth proportional to 8,367.68, 12,555.14 and 3,172.34 is: 4,759.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,367.68 : 12,555.14 = 3,172.34 : x
  2. Step 2: Convert to fraction form
    8,367.68/12,555.14 = 3,172.34/x
  3. Step 3: Cross multiply
    8,367.68x = 12,555.14 × 3,172.34
  4. Step 4: Simplify right side
    8,367.68x = 39,829,094.19
  5. Step 5: Solve for x
    x = 39,829,094.19/8,367.68
  6. Step 6: Final answer
    x = 4,759.88

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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.