Home / 8,097.86-12,143.28-3,419.96

Finding the Fourth Proportional to 8,097.86, 12,143.28 and 3,419.96

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Solution

The fourth proportional to 8,097.86, 12,143.28 and 3,419.96 is: 5,128.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,097.86 : 12,143.28 = 3,419.96 : x
  2. Step 2: Convert to fraction form
    8,097.86/12,143.28 = 3,419.96/x
  3. Step 3: Cross multiply
    8,097.86x = 12,143.28 × 3,419.96
  4. Step 4: Simplify right side
    8,097.86x = 41,529,531.87
  5. Step 5: Solve for x
    x = 41,529,531.87/8,097.86
  6. Step 6: Final answer
    x = 5,128.46

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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.