Home / 8,611.21-12,916.87-2,371.11

Finding the Fourth Proportional to 8,611.21, 12,916.87 and 2,371.11

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Solution

The fourth proportional to 8,611.21, 12,916.87 and 2,371.11 is: 3,556.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,611.21 : 12,916.87 = 2,371.11 : x
  2. Step 2: Convert to fraction form
    8,611.21/12,916.87 = 2,371.11/x
  3. Step 3: Cross multiply
    8,611.21x = 12,916.87 × 2,371.11
  4. Step 4: Simplify right side
    8,611.21x = 30,627,265.26
  5. Step 5: Solve for x
    x = 30,627,265.26/8,611.21
  6. Step 6: Final answer
    x = 3,556.67

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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.