Home / 9,211.11-12,696.15-6,518.85

Finding the Fourth Proportional to 9,211.11, 12,696.15 and 6,518.85

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Solution

The fourth proportional to 9,211.11, 12,696.15 and 6,518.85 is: 8,985.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.11 : 12,696.15 = 6,518.85 : x
  2. Step 2: Convert to fraction form
    9,211.11/12,696.15 = 6,518.85/x
  3. Step 3: Cross multiply
    9,211.11x = 12,696.15 × 6,518.85
  4. Step 4: Simplify right side
    9,211.11x = 82,764,297.43
  5. Step 5: Solve for x
    x = 82,764,297.43/9,211.11
  6. Step 6: Final answer
    x = 8,985.27

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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.