Home / 13,862.79-20,788.01-3,999.73

Finding the Fourth Proportional to 13,862.79, 20,788.01 and 3,999.73

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Solution

The fourth proportional to 13,862.79, 20,788.01 and 3,999.73 is: 5,997.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862.79 : 20,788.01 = 3,999.73 : x
  2. Step 2: Convert to fraction form
    13,862.79/20,788.01 = 3,999.73/x
  3. Step 3: Cross multiply
    13,862.79x = 20,788.01 × 3,999.73
  4. Step 4: Simplify right side
    13,862.79x = 83,146,385.27
  5. Step 5: Solve for x
    x = 83,146,385.27/13,862.79
  6. Step 6: Final answer
    x = 5,997.81

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1.5x scale

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.