Home / 13,390.36-20,086.62-4,156.36

Finding the Fourth Proportional to 13,390.36, 20,086.62 and 4,156.36

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Solution

The fourth proportional to 13,390.36, 20,086.62 and 4,156.36 is: 6,234.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.36 : 20,086.62 = 4,156.36 : x
  2. Step 2: Convert to fraction form
    13,390.36/20,086.62 = 4,156.36/x
  3. Step 3: Cross multiply
    13,390.36x = 20,086.62 × 4,156.36
  4. Step 4: Simplify right side
    13,390.36x = 83,487,223.90
  5. Step 5: Solve for x
    x = 83,487,223.90/13,390.36
  6. Step 6: Final answer
    x = 6,234.88

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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.