Home / 13,911.06-20,859.78-6,882.96

Finding the Fourth Proportional to 13,911.06, 20,859.78 and 6,882.96

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Solution

The fourth proportional to 13,911.06, 20,859.78 and 6,882.96 is: 10,321.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.06 : 20,859.78 = 6,882.96 : x
  2. Step 2: Convert to fraction form
    13,911.06/20,859.78 = 6,882.96/x
  3. Step 3: Cross multiply
    13,911.06x = 20,859.78 × 6,882.96
  4. Step 4: Simplify right side
    13,911.06x = 143,577,031.35
  5. Step 5: Solve for x
    x = 143,577,031.35/13,911.06
  6. Step 6: Final answer
    x = 10,321.07

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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.