Home / 8,284.11-12,428.38-3,605.12

Finding the Fourth Proportional to 8,284.11, 12,428.38 and 3,605.12

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Solution

The fourth proportional to 8,284.11, 12,428.38 and 3,605.12 is: 5,408.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,284.11 : 12,428.38 = 3,605.12 : x
  2. Step 2: Convert to fraction form
    8,284.11/12,428.38 = 3,605.12/x
  3. Step 3: Cross multiply
    8,284.11x = 12,428.38 × 3,605.12
  4. Step 4: Simplify right side
    8,284.11x = 44,805,801.31
  5. Step 5: Solve for x
    x = 44,805,801.31/8,284.11
  6. Step 6: Final answer
    x = 5,408.65

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1.5x scale

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.