Home / 8,135.91-12,203.85-2,292.51

Finding the Fourth Proportional to 8,135.91, 12,203.85 and 2,292.51

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Solution

The fourth proportional to 8,135.91, 12,203.85 and 2,292.51 is: 3,438.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.91 : 12,203.85 = 2,292.51 : x
  2. Step 2: Convert to fraction form
    8,135.91/12,203.85 = 2,292.51/x
  3. Step 3: Cross multiply
    8,135.91x = 12,203.85 × 2,292.51
  4. Step 4: Simplify right side
    8,135.91x = 27,977,448.16
  5. Step 5: Solve for x
    x = 27,977,448.16/8,135.91
  6. Step 6: Final answer
    x = 3,438.76

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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.