Home / 13,858.02-20,787.03-3,469.77

Finding the Fourth Proportional to 13,858.02, 20,787.03 and 3,469.77

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Solution

The fourth proportional to 13,858.02, 20,787.03 and 3,469.77 is: 5,204.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,858.02 : 20,787.03 = 3,469.77 : x
  2. Step 2: Convert to fraction form
    13,858.02/20,787.03 = 3,469.77/x
  3. Step 3: Cross multiply
    13,858.02x = 20,787.03 × 3,469.77
  4. Step 4: Simplify right side
    13,858.02x = 72,126,213.08
  5. Step 5: Solve for x
    x = 72,126,213.08/13,858.02
  6. Step 6: Final answer
    x = 5,204.66

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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.