Home / 8,238.17-12,358.87-2,690.03

Finding the Fourth Proportional to 8,238.17, 12,358.87 and 2,690.03

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Solution

The fourth proportional to 8,238.17, 12,358.87 and 2,690.03 is: 4,035.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,238.17 : 12,358.87 = 2,690.03 : x
  2. Step 2: Convert to fraction form
    8,238.17/12,358.87 = 2,690.03/x
  3. Step 3: Cross multiply
    8,238.17x = 12,358.87 × 2,690.03
  4. Step 4: Simplify right side
    8,238.17x = 33,245,731.07
  5. Step 5: Solve for x
    x = 33,245,731.07/8,238.17
  6. Step 6: Final answer
    x = 4,035.57

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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.