Home / 13,989.48-20,983.29-4,135.23

Finding the Fourth Proportional to 13,989.48, 20,983.29 and 4,135.23

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Solution

The fourth proportional to 13,989.48, 20,983.29 and 4,135.23 is: 6,202.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.48 : 20,983.29 = 4,135.23 : x
  2. Step 2: Convert to fraction form
    13,989.48/20,983.29 = 4,135.23/x
  3. Step 3: Cross multiply
    13,989.48x = 20,983.29 × 4,135.23
  4. Step 4: Simplify right side
    13,989.48x = 86,770,730.31
  5. Step 5: Solve for x
    x = 86,770,730.31/13,989.48
  6. Step 6: Final answer
    x = 6,202.57

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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.