Home / 7,921.07-11,883.85-3,967.56

Finding the Fourth Proportional to 7,921.07, 11,883.85 and 3,967.56

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Solution

The fourth proportional to 7,921.07, 11,883.85 and 3,967.56 is: 5,952.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.07 : 11,883.85 = 3,967.56 : x
  2. Step 2: Convert to fraction form
    7,921.07/11,883.85 = 3,967.56/x
  3. Step 3: Cross multiply
    7,921.07x = 11,883.85 × 3,967.56
  4. Step 4: Simplify right side
    7,921.07x = 47,149,887.91
  5. Step 5: Solve for x
    x = 47,149,887.91/7,921.07
  6. Step 6: Final answer
    x = 5,952.46

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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.