Home / 13,709.92-20,556.23-11,630.66

Finding the Fourth Proportional to 13,709.92, 20,556.23 and 11,630.66

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Solution

The fourth proportional to 13,709.92, 20,556.23 and 11,630.66 is: 17,438.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,709.92 : 20,556.23 = 11,630.66 : x
  2. Step 2: Convert to fraction form
    13,709.92/20,556.23 = 11,630.66/x
  3. Step 3: Cross multiply
    13,709.92x = 20,556.23 × 11,630.66
  4. Step 4: Simplify right side
    13,709.92x = 239,082,522.01
  5. Step 5: Solve for x
    x = 239,082,522.01/13,709.92
  6. Step 6: Final answer
    x = 17,438.65

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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.