Home / 13,837.44-19,091.22-8,172.40

Finding the Fourth Proportional to 13,837.44, 19,091.22 and 8,172.40

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Solution

The fourth proportional to 13,837.44, 19,091.22 and 8,172.40 is: 11,275.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,837.44 : 19,091.22 = 8,172.40 : x
  2. Step 2: Convert to fraction form
    13,837.44/19,091.22 = 8,172.40/x
  3. Step 3: Cross multiply
    13,837.44x = 19,091.22 × 8,172.40
  4. Step 4: Simplify right side
    13,837.44x = 156,021,086.33
  5. Step 5: Solve for x
    x = 156,021,086.33/13,837.44
  6. Step 6: Final answer
    x = 11,275.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.