Home / 8,356.11-12,537.41-3,428.07

Finding the Fourth Proportional to 8,356.11, 12,537.41 and 3,428.07

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Solution

The fourth proportional to 8,356.11, 12,537.41 and 3,428.07 is: 5,143.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,356.11 : 12,537.41 = 3,428.07 : x
  2. Step 2: Convert to fraction form
    8,356.11/12,537.41 = 3,428.07/x
  3. Step 3: Cross multiply
    8,356.11x = 12,537.41 × 3,428.07
  4. Step 4: Simplify right side
    8,356.11x = 42,979,101.96
  5. Step 5: Solve for x
    x = 42,979,101.96/8,356.11
  6. Step 6: Final answer
    x = 5,143.43

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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.