Home / 7,927.61-11,887.43-2,660.76

Finding the Fourth Proportional to 7,927.61, 11,887.43 and 2,660.76

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Solution

The fourth proportional to 7,927.61, 11,887.43 and 2,660.76 is: 3,989.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,927.61 : 11,887.43 = 2,660.76 : x
  2. Step 2: Convert to fraction form
    7,927.61/11,887.43 = 2,660.76/x
  3. Step 3: Cross multiply
    7,927.61x = 11,887.43 × 2,660.76
  4. Step 4: Simplify right side
    7,927.61x = 31,629,584.94
  5. Step 5: Solve for x
    x = 31,629,584.94/7,927.61
  6. Step 6: Final answer
    x = 3,989.80

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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.