Home / 18,759.05-25,895.45-11,688.96

Finding the Fourth Proportional to 18,759.05, 25,895.45 and 11,688.96

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Solution

The fourth proportional to 18,759.05, 25,895.45 and 11,688.96 is: 16,135.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,759.05 : 25,895.45 = 11,688.96 : x
  2. Step 2: Convert to fraction form
    18,759.05/25,895.45 = 11,688.96/x
  3. Step 3: Cross multiply
    18,759.05x = 25,895.45 × 11,688.96
  4. Step 4: Simplify right side
    18,759.05x = 302,690,908.45
  5. Step 5: Solve for x
    x = 302,690,908.45/18,759.05
  6. Step 6: Final answer
    x = 16,135.73

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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.