Home / 13,989.42-20,983.86-5,669.10

Finding the Fourth Proportional to 13,989.42, 20,983.86 and 5,669.10

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Solution

The fourth proportional to 13,989.42, 20,983.86 and 5,669.10 is: 8,503.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.42 : 20,983.86 = 5,669.10 : x
  2. Step 2: Convert to fraction form
    13,989.42/20,983.86 = 5,669.10/x
  3. Step 3: Cross multiply
    13,989.42x = 20,983.86 × 5,669.10
  4. Step 4: Simplify right side
    13,989.42x = 118,959,600.73
  5. Step 5: Solve for x
    x = 118,959,600.73/13,989.42
  6. Step 6: Final answer
    x = 8,503.54

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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.