Home / 18,688.96-25,790.79-11,974.60

Finding the Fourth Proportional to 18,688.96, 25,790.79 and 11,974.60

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Solution

The fourth proportional to 18,688.96, 25,790.79 and 11,974.60 is: 16,524.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.96 : 25,790.79 = 11,974.60 : x
  2. Step 2: Convert to fraction form
    18,688.96/25,790.79 = 11,974.60/x
  3. Step 3: Cross multiply
    18,688.96x = 25,790.79 × 11,974.60
  4. Step 4: Simplify right side
    18,688.96x = 308,834,393.93
  5. Step 5: Solve for x
    x = 308,834,393.93/18,688.96
  6. Step 6: Final answer
    x = 16,524.96

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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.