Home / 12,399.45-17,111.19-6,734.08

Finding the Fourth Proportional to 12,399.45, 17,111.19 and 6,734.08

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Solution

The fourth proportional to 12,399.45, 17,111.19 and 6,734.08 is: 9,293.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399.45 : 17,111.19 = 6,734.08 : x
  2. Step 2: Convert to fraction form
    12,399.45/17,111.19 = 6,734.08/x
  3. Step 3: Cross multiply
    12,399.45x = 17,111.19 × 6,734.08
  4. Step 4: Simplify right side
    12,399.45x = 115,228,093.87
  5. Step 5: Solve for x
    x = 115,228,093.87/12,399.45
  6. Step 6: Final answer
    x = 9,293.00

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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.