Home / 13,999.29-20,990.67-6,607.23

Finding the Fourth Proportional to 13,999.29, 20,990.67 and 6,607.23

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Solution

The fourth proportional to 13,999.29, 20,990.67 and 6,607.23 is: 9,906.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.29 : 20,990.67 = 6,607.23 : x
  2. Step 2: Convert to fraction form
    13,999.29/20,990.67 = 6,607.23/x
  3. Step 3: Cross multiply
    13,999.29x = 20,990.67 × 6,607.23
  4. Step 4: Simplify right side
    13,999.29x = 138,690,184.54
  5. Step 5: Solve for x
    x = 138,690,184.54/13,999.29
  6. Step 6: Final answer
    x = 9,906.94

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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.