Home / 13,824.60-20,698.56-11,388.66

Finding the Fourth Proportional to 13,824.60, 20,698.56 and 11,388.66

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Solution

The fourth proportional to 13,824.60, 20,698.56 and 11,388.66 is: 17,051.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.60 : 20,698.56 = 11,388.66 : x
  2. Step 2: Convert to fraction form
    13,824.60/20,698.56 = 11,388.66/x
  3. Step 3: Cross multiply
    13,824.60x = 20,698.56 × 11,388.66
  4. Step 4: Simplify right side
    13,824.60x = 235,728,862.33
  5. Step 5: Solve for x
    x = 235,728,862.33/13,824.60
  6. Step 6: Final answer
    x = 17,051.41

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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.