Home / 10,965.05-15,131.81-6,249.41

Finding the Fourth Proportional to 10,965.05, 15,131.81 and 6,249.41

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Solution

The fourth proportional to 10,965.05, 15,131.81 and 6,249.41 is: 8,624.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,965.05 : 15,131.81 = 6,249.41 : x
  2. Step 2: Convert to fraction form
    10,965.05/15,131.81 = 6,249.41/x
  3. Step 3: Cross multiply
    10,965.05x = 15,131.81 × 6,249.41
  4. Step 4: Simplify right side
    10,965.05x = 94,564,853.49
  5. Step 5: Solve for x
    x = 94,564,853.49/10,965.05
  6. Step 6: Final answer
    x = 8,624.21

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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.