Home / 13,187.56-19,781.34-11,227.24

Finding the Fourth Proportional to 13,187.56, 19,781.34 and 11,227.24

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Solution

The fourth proportional to 13,187.56, 19,781.34 and 11,227.24 is: 16,840.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.56 : 19,781.34 = 11,227.24 : x
  2. Step 2: Convert to fraction form
    13,187.56/19,781.34 = 11,227.24/x
  3. Step 3: Cross multiply
    13,187.56x = 19,781.34 × 11,227.24
  4. Step 4: Simplify right side
    13,187.56x = 222,089,851.70
  5. Step 5: Solve for x
    x = 222,089,851.70/13,187.56
  6. Step 6: Final answer
    x = 16,840.86

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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.