Home / 13,989.43-20,984.18-11,519.06

Finding the Fourth Proportional to 13,989.43, 20,984.18 and 11,519.06

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Solution

The fourth proportional to 13,989.43, 20,984.18 and 11,519.06 is: 17,278.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.43 : 20,984.18 = 11,519.06 : x
  2. Step 2: Convert to fraction form
    13,989.43/20,984.18 = 11,519.06/x
  3. Step 3: Cross multiply
    13,989.43x = 20,984.18 × 11,519.06
  4. Step 4: Simplify right side
    13,989.43x = 241,718,023.34
  5. Step 5: Solve for x
    x = 241,718,023.34/13,989.43
  6. Step 6: Final answer
    x = 17,278.62

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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.