Home / 13,998.29-20,989.17-6,606.23

Finding the Fourth Proportional to 13,998.29, 20,989.17 and 6,606.23

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Solution

The fourth proportional to 13,998.29, 20,989.17 and 6,606.23 is: 9,905.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.29 : 20,989.17 = 6,606.23 : x
  2. Step 2: Convert to fraction form
    13,998.29/20,989.17 = 6,606.23/x
  3. Step 3: Cross multiply
    13,998.29x = 20,989.17 × 6,606.23
  4. Step 4: Simplify right side
    13,998.29x = 138,659,179.58
  5. Step 5: Solve for x
    x = 138,659,179.58/13,998.29
  6. Step 6: Final answer
    x = 9,905.44

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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.