Home / 18,715.86-28,073.82-5,568.36

Finding the Fourth Proportional to 18,715.86, 28,073.82 and 5,568.36

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Solution

The fourth proportional to 18,715.86, 28,073.82 and 5,568.36 is: 8,352.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715.86 : 28,073.82 = 5,568.36 : x
  2. Step 2: Convert to fraction form
    18,715.86/28,073.82 = 5,568.36/x
  3. Step 3: Cross multiply
    18,715.86x = 28,073.82 × 5,568.36
  4. Step 4: Simplify right side
    18,715.86x = 156,325,136.34
  5. Step 5: Solve for x
    x = 156,325,136.34/18,715.86
  6. Step 6: Final answer
    x = 8,352.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.