Home / 8,135.57-12,203.35-2,291.42

Finding the Fourth Proportional to 8,135.57, 12,203.35 and 2,291.42

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Solution

The fourth proportional to 8,135.57, 12,203.35 and 2,291.42 is: 3,437.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.57 : 12,203.35 = 2,291.42 : x
  2. Step 2: Convert to fraction form
    8,135.57/12,203.35 = 2,291.42/x
  3. Step 3: Cross multiply
    8,135.57x = 12,203.35 × 2,291.42
  4. Step 4: Simplify right side
    8,135.57x = 27,962,933.51
  5. Step 5: Solve for x
    x = 27,962,933.51/8,135.57
  6. Step 6: Final answer
    x = 3,437.12

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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.