Home / 10,909.64-16,362.60-3,889.38

Finding the Fourth Proportional to 10,909.64, 16,362.60 and 3,889.38

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Solution

The fourth proportional to 10,909.64, 16,362.60 and 3,889.38 is: 5,833.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.64 : 16,362.60 = 3,889.38 : x
  2. Step 2: Convert to fraction form
    10,909.64/16,362.60 = 3,889.38/x
  3. Step 3: Cross multiply
    10,909.64x = 16,362.60 × 3,889.38
  4. Step 4: Simplify right side
    10,909.64x = 63,640,369.19
  5. Step 5: Solve for x
    x = 63,640,369.19/10,909.64
  6. Step 6: Final answer
    x = 5,833.41

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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.