Home / 7,945.11-11,920.32-6,959.07

Finding the Fourth Proportional to 7,945.11, 11,920.32 and 6,959.07

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Solution

The fourth proportional to 7,945.11, 11,920.32 and 6,959.07 is: 10,440.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.11 : 11,920.32 = 6,959.07 : x
  2. Step 2: Convert to fraction form
    7,945.11/11,920.32 = 6,959.07/x
  3. Step 3: Cross multiply
    7,945.11x = 11,920.32 × 6,959.07
  4. Step 4: Simplify right side
    7,945.11x = 82,954,341.30
  5. Step 5: Solve for x
    x = 82,954,341.30/7,945.11
  6. Step 6: Final answer
    x = 10,440.93

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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.