Home / 16,869-25,302.26-5,181.50

Finding the Fourth Proportional to 16,869, 25,302.26 and 5,181.50

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Solution

The fourth proportional to 16,869, 25,302.26 and 5,181.50 is: 7,771.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,869 : 25,302.26 = 5,181.50 : x
  2. Step 2: Convert to fraction form
    16,869/25,302.26 = 5,181.50/x
  3. Step 3: Cross multiply
    16,869x = 25,302.26 × 5,181.50
  4. Step 4: Simplify right side
    16,869x = 131,103,660.19
  5. Step 5: Solve for x
    x = 131,103,660.19/16,869
  6. Step 6: Final answer
    x = 7,771.87

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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.