Home / 13,275.45-19,906.32-3,914.28

Finding the Fourth Proportional to 13,275.45, 19,906.32 and 3,914.28

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Solution

The fourth proportional to 13,275.45, 19,906.32 and 3,914.28 is: 5,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.45 : 19,906.32 = 3,914.28 : x
  2. Step 2: Convert to fraction form
    13,275.45/19,906.32 = 3,914.28/x
  3. Step 3: Cross multiply
    13,275.45x = 19,906.32 × 3,914.28
  4. Step 4: Simplify right side
    13,275.45x = 77,918,910.25
  5. Step 5: Solve for x
    x = 77,918,910.25/13,275.45
  6. Step 6: Final answer
    x = 5,869.40

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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.