Home / 16,890.36-25,335.60-9,960

Finding the Fourth Proportional to 16,890.36, 25,335.60 and 9,960

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Solution

The fourth proportional to 16,890.36, 25,335.60 and 9,960 is: 14,940.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,890.36 : 25,335.60 = 9,960 : x
  2. Step 2: Convert to fraction form
    16,890.36/25,335.60 = 9,960/x
  3. Step 3: Cross multiply
    16,890.36x = 25,335.60 × 9,960
  4. Step 4: Simplify right side
    16,890.36x = 252,342,576
  5. Step 5: Solve for x
    x = 252,342,576/16,890.36
  6. Step 6: Final answer
    x = 14,940.04

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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.