Home / 13,135.47-19,694.49-6,887.94

Finding the Fourth Proportional to 13,135.47, 19,694.49 and 6,887.94

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Solution

The fourth proportional to 13,135.47, 19,694.49 and 6,887.94 is: 10,327.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.47 : 19,694.49 = 6,887.94 : x
  2. Step 2: Convert to fraction form
    13,135.47/19,694.49 = 6,887.94/x
  3. Step 3: Cross multiply
    13,135.47x = 19,694.49 × 6,887.94
  4. Step 4: Simplify right side
    13,135.47x = 135,654,465.45
  5. Step 5: Solve for x
    x = 135,654,465.45/13,135.47
  6. Step 6: Final answer
    x = 10,327.34

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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.