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Finding the Fourth Proportional to 7,611.46, 11,416.46 and 5,399.76

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Solution

The fourth proportional to 7,611.46, 11,416.46 and 5,399.76 is: 8,099.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611.46 : 11,416.46 = 5,399.76 : x
  2. Step 2: Convert to fraction form
    7,611.46/11,416.46 = 5,399.76/x
  3. Step 3: Cross multiply
    7,611.46x = 11,416.46 × 5,399.76
  4. Step 4: Simplify right side
    7,611.46x = 61,646,144.05
  5. Step 5: Solve for x
    x = 61,646,144.05/7,611.46
  6. Step 6: Final answer
    x = 8,099.12

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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.