Home / 13,299.53-18,350.03-8,578.13

Finding the Fourth Proportional to 13,299.53, 18,350.03 and 8,578.13

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Solution

The fourth proportional to 13,299.53, 18,350.03 and 8,578.13 is: 11,835.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.53 : 18,350.03 = 8,578.13 : x
  2. Step 2: Convert to fraction form
    13,299.53/18,350.03 = 8,578.13/x
  3. Step 3: Cross multiply
    13,299.53x = 18,350.03 × 8,578.13
  4. Step 4: Simplify right side
    13,299.53x = 157,408,872.54
  5. Step 5: Solve for x
    x = 157,408,872.54/13,299.53
  6. Step 6: Final answer
    x = 11,835.68

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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.