Home / 7,500.42-11,244.57-3,121.17

Finding the Fourth Proportional to 7,500.42, 11,244.57 and 3,121.17

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Solution

The fourth proportional to 7,500.42, 11,244.57 and 3,121.17 is: 4,679.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,500.42 : 11,244.57 = 3,121.17 : x
  2. Step 2: Convert to fraction form
    7,500.42/11,244.57 = 3,121.17/x
  3. Step 3: Cross multiply
    7,500.42x = 11,244.57 × 3,121.17
  4. Step 4: Simplify right side
    7,500.42x = 35,096,214.55
  5. Step 5: Solve for x
    x = 35,096,214.55/7,500.42
  6. Step 6: Final answer
    x = 4,679.23

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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.