Home / 13,918.02-20,876.82-3,529.77

Finding the Fourth Proportional to 13,918.02, 20,876.82 and 3,529.77

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Solution

The fourth proportional to 13,918.02, 20,876.82 and 3,529.77 is: 5,294.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.02 : 20,876.82 = 3,529.77 : x
  2. Step 2: Convert to fraction form
    13,918.02/20,876.82 = 3,529.77/x
  3. Step 3: Cross multiply
    13,918.02x = 20,876.82 × 3,529.77
  4. Step 4: Simplify right side
    13,918.02x = 73,690,268.55
  5. Step 5: Solve for x
    x = 73,690,268.55/13,918.02
  6. Step 6: Final answer
    x = 5,294.60

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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.