Home / 7,945.11-10,961.07-5,112

Finding the Fourth Proportional to 7,945.11, 10,961.07 and 5,112

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Solution

The fourth proportional to 7,945.11, 10,961.07 and 5,112 is: 7,052.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.11 : 10,961.07 = 5,112 : x
  2. Step 2: Convert to fraction form
    7,945.11/10,961.07 = 5,112/x
  3. Step 3: Cross multiply
    7,945.11x = 10,961.07 × 5,112
  4. Step 4: Simplify right side
    7,945.11x = 56,032,989.84
  5. Step 5: Solve for x
    x = 56,032,989.84/7,945.11
  6. Step 6: Final answer
    x = 7,052.51

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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.