Home / 16,888.30-25,299.64-8,129.36

Finding the Fourth Proportional to 16,888.30, 25,299.64 and 8,129.36

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Solution

The fourth proportional to 16,888.30, 25,299.64 and 8,129.36 is: 12,178.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,888.30 : 25,299.64 = 8,129.36 : x
  2. Step 2: Convert to fraction form
    16,888.30/25,299.64 = 8,129.36/x
  3. Step 3: Cross multiply
    16,888.30x = 25,299.64 × 8,129.36
  4. Step 4: Simplify right side
    16,888.30x = 205,669,954.84
  5. Step 5: Solve for x
    x = 205,669,954.84/16,888.30
  6. Step 6: Final answer
    x = 12,178.25

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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.