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Finding the Fourth Proportional to 8,340.57, 11,516.99 and 6,950.61

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Solution

The fourth proportional to 8,340.57, 11,516.99 and 6,950.61 is: 9,597.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.57 : 11,516.99 = 6,950.61 : x
  2. Step 2: Convert to fraction form
    8,340.57/11,516.99 = 6,950.61/x
  3. Step 3: Cross multiply
    8,340.57x = 11,516.99 × 6,950.61
  4. Step 4: Simplify right side
    8,340.57x = 80,050,071.11
  5. Step 5: Solve for x
    x = 80,050,071.11/8,340.57
  6. Step 6: Final answer
    x = 9,597.67

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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.