Home / 18,790.90-25,935.71-11,715.96

Finding the Fourth Proportional to 18,790.90, 25,935.71 and 11,715.96

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Solution

The fourth proportional to 18,790.90, 25,935.71 and 11,715.96 is: 16,170.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790.90 : 25,935.71 = 11,715.96 : x
  2. Step 2: Convert to fraction form
    18,790.90/25,935.71 = 11,715.96/x
  3. Step 3: Cross multiply
    18,790.90x = 25,935.71 × 11,715.96
  4. Step 4: Simplify right side
    18,790.90x = 303,861,552.67
  5. Step 5: Solve for x
    x = 303,861,552.67/18,790.90
  6. Step 6: Final answer
    x = 16,170.68

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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.