Home / 8,172.86-11,277.36-4,635.38

Finding the Fourth Proportional to 8,172.86, 11,277.36 and 4,635.38

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Solution

The fourth proportional to 8,172.86, 11,277.36 and 4,635.38 is: 6,396.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.86 : 11,277.36 = 4,635.38 : x
  2. Step 2: Convert to fraction form
    8,172.86/11,277.36 = 4,635.38/x
  3. Step 3: Cross multiply
    8,172.86x = 11,277.36 × 4,635.38
  4. Step 4: Simplify right side
    8,172.86x = 52,274,792.61
  5. Step 5: Solve for x
    x = 52,274,792.61/8,172.86
  6. Step 6: Final answer
    x = 6,396.15

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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.