Home / 13,863.99-20,889.52-11,452.80

Finding the Fourth Proportional to 13,863.99, 20,889.52 and 11,452.80

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Solution

The fourth proportional to 13,863.99, 20,889.52 and 11,452.80 is: 17,256.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,863.99 : 20,889.52 = 11,452.80 : x
  2. Step 2: Convert to fraction form
    13,863.99/20,889.52 = 11,452.80/x
  3. Step 3: Cross multiply
    13,863.99x = 20,889.52 × 11,452.80
  4. Step 4: Simplify right side
    13,863.99x = 239,243,494.66
  5. Step 5: Solve for x
    x = 239,243,494.66/13,863.99
  6. Step 6: Final answer
    x = 17,256.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.