Home / 13,949.04-19,249.82-7,661.42

Finding the Fourth Proportional to 13,949.04, 19,249.82 and 7,661.42

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Solution

The fourth proportional to 13,949.04, 19,249.82 and 7,661.42 is: 10,572.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.04 : 19,249.82 = 7,661.42 : x
  2. Step 2: Convert to fraction form
    13,949.04/19,249.82 = 7,661.42/x
  3. Step 3: Cross multiply
    13,949.04x = 19,249.82 × 7,661.42
  4. Step 4: Simplify right side
    13,949.04x = 147,480,955.94
  5. Step 5: Solve for x
    x = 147,480,955.94/13,949.04
  6. Step 6: Final answer
    x = 10,572.84

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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.