Home / 18,610.56-27,922.32-6,931.44

Finding the Fourth Proportional to 18,610.56, 27,922.32 and 6,931.44

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Solution

The fourth proportional to 18,610.56, 27,922.32 and 6,931.44 is: 10,399.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,610.56 : 27,922.32 = 6,931.44 : x
  2. Step 2: Convert to fraction form
    18,610.56/27,922.32 = 6,931.44/x
  3. Step 3: Cross multiply
    18,610.56x = 27,922.32 × 6,931.44
  4. Step 4: Simplify right side
    18,610.56x = 193,541,885.74
  5. Step 5: Solve for x
    x = 193,541,885.74/18,610.56
  6. Step 6: Final answer
    x = 10,399.57

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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.