Home / 13,965.36-20,948.12-4,104.78

Finding the Fourth Proportional to 13,965.36, 20,948.12 and 4,104.78

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Solution

The fourth proportional to 13,965.36, 20,948.12 and 4,104.78 is: 6,157.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.36 : 20,948.12 = 4,104.78 : x
  2. Step 2: Convert to fraction form
    13,965.36/20,948.12 = 4,104.78/x
  3. Step 3: Cross multiply
    13,965.36x = 20,948.12 × 4,104.78
  4. Step 4: Simplify right side
    13,965.36x = 85,987,424.01
  5. Step 5: Solve for x
    x = 85,987,424.01/13,965.36
  6. Step 6: Final answer
    x = 6,157.19

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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.