Home / 10,838.70-16,221.60-9,963.90

Finding the Fourth Proportional to 10,838.70, 16,221.60 and 9,963.90

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Solution

The fourth proportional to 10,838.70, 16,221.60 and 9,963.90 is: 14,912.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,838.70 : 16,221.60 = 9,963.90 : x
  2. Step 2: Convert to fraction form
    10,838.70/16,221.60 = 9,963.90/x
  3. Step 3: Cross multiply
    10,838.70x = 16,221.60 × 9,963.90
  4. Step 4: Simplify right side
    10,838.70x = 161,630,400.24
  5. Step 5: Solve for x
    x = 161,630,400.24/10,838.70
  6. Step 6: Final answer
    x = 14,912.34

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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.