Home / 13,703.12-20,553.05-3,843.18

Finding the Fourth Proportional to 13,703.12, 20,553.05 and 3,843.18

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Solution

The fourth proportional to 13,703.12, 20,553.05 and 3,843.18 is: 5,764.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,703.12 : 20,553.05 = 3,843.18 : x
  2. Step 2: Convert to fraction form
    13,703.12/20,553.05 = 3,843.18/x
  3. Step 3: Cross multiply
    13,703.12x = 20,553.05 × 3,843.18
  4. Step 4: Simplify right side
    13,703.12x = 78,989,051.48
  5. Step 5: Solve for x
    x = 78,989,051.48/13,703.12
  6. Step 6: Final answer
    x = 5,764.31

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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.