Home / 13,948.78-19,249.26-7,661.02

Finding the Fourth Proportional to 13,948.78, 19,249.26 and 7,661.02

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Solution

The fourth proportional to 13,948.78, 19,249.26 and 7,661.02 is: 10,572.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.78 : 19,249.26 = 7,661.02 : x
  2. Step 2: Convert to fraction form
    13,948.78/19,249.26 = 7,661.02/x
  3. Step 3: Cross multiply
    13,948.78x = 19,249.26 × 7,661.02
  4. Step 4: Simplify right side
    13,948.78x = 147,468,965.85
  5. Step 5: Solve for x
    x = 147,468,965.85/13,948.78
  6. Step 6: Final answer
    x = 10,572.18

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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.