Home / 12,609.92-18,916.80-4,400

Finding the Fourth Proportional to 12,609.92, 18,916.80 and 4,400

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Solution

The fourth proportional to 12,609.92, 18,916.80 and 4,400 is: 6,600.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.92 : 18,916.80 = 4,400 : x
  2. Step 2: Convert to fraction form
    12,609.92/18,916.80 = 4,400/x
  3. Step 3: Cross multiply
    12,609.92x = 18,916.80 × 4,400
  4. Step 4: Simplify right side
    12,609.92x = 83,233,920
  5. Step 5: Solve for x
    x = 83,233,920/12,609.92
  6. Step 6: Final answer
    x = 6,600.67

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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.