Home / 10,067.49-13,896.81-8,645.45

Finding the Fourth Proportional to 10,067.49, 13,896.81 and 8,645.45

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Solution

The fourth proportional to 10,067.49, 13,896.81 and 8,645.45 is: 11,933.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,067.49 : 13,896.81 = 8,645.45 : x
  2. Step 2: Convert to fraction form
    10,067.49/13,896.81 = 8,645.45/x
  3. Step 3: Cross multiply
    10,067.49x = 13,896.81 × 8,645.45
  4. Step 4: Simplify right side
    10,067.49x = 120,144,106.53
  5. Step 5: Solve for x
    x = 120,144,106.53/10,067.49
  6. Step 6: Final answer
    x = 11,933.87

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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.