Home / 13,918.96-20,876.77-3,924.46

Finding the Fourth Proportional to 13,918.96, 20,876.77 and 3,924.46

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Solution

The fourth proportional to 13,918.96, 20,876.77 and 3,924.46 is: 5,886.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.96 : 20,876.77 = 3,924.46 : x
  2. Step 2: Convert to fraction form
    13,918.96/20,876.77 = 3,924.46/x
  3. Step 3: Cross multiply
    13,918.96x = 20,876.77 × 3,924.46
  4. Step 4: Simplify right side
    13,918.96x = 81,930,079.80
  5. Step 5: Solve for x
    x = 81,930,079.80/13,918.96
  6. Step 6: Final answer
    x = 5,886.22

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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.