Home / 8,511.11-12,758.88-3,581.10

Finding the Fourth Proportional to 8,511.11, 12,758.88 and 3,581.10

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Solution

The fourth proportional to 8,511.11, 12,758.88 and 3,581.10 is: 5,368.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.11 : 12,758.88 = 3,581.10 : x
  2. Step 2: Convert to fraction form
    8,511.11/12,758.88 = 3,581.10/x
  3. Step 3: Cross multiply
    8,511.11x = 12,758.88 × 3,581.10
  4. Step 4: Simplify right side
    8,511.11x = 45,690,825.17
  5. Step 5: Solve for x
    x = 45,690,825.17/8,511.11
  6. Step 6: Final answer
    x = 5,368.37

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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.