Home / 12,399.96-17,112.09-6,734.77

Finding the Fourth Proportional to 12,399.96, 17,112.09 and 6,734.77

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Solution

The fourth proportional to 12,399.96, 17,112.09 and 6,734.77 is: 9,294.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399.96 : 17,112.09 = 6,734.77 : x
  2. Step 2: Convert to fraction form
    12,399.96/17,112.09 = 6,734.77/x
  3. Step 3: Cross multiply
    12,399.96x = 17,112.09 × 6,734.77
  4. Step 4: Simplify right side
    12,399.96x = 115,245,990.37
  5. Step 5: Solve for x
    x = 115,245,990.37/12,399.96
  6. Step 6: Final answer
    x = 9,294.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.