Home / 13,229.56-19,846.09-6,989.81

Finding the Fourth Proportional to 13,229.56, 19,846.09 and 6,989.81

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Solution

The fourth proportional to 13,229.56, 19,846.09 and 6,989.81 is: 10,485.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.56 : 19,846.09 = 6,989.81 : x
  2. Step 2: Convert to fraction form
    13,229.56/19,846.09 = 6,989.81/x
  3. Step 3: Cross multiply
    13,229.56x = 19,846.09 × 6,989.81
  4. Step 4: Simplify right side
    13,229.56x = 138,720,450.97
  5. Step 5: Solve for x
    x = 138,720,450.97/13,229.56
  6. Step 6: Final answer
    x = 10,485.65

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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.