Home / 7,500.12-11,247.75-2,819.94

Finding the Fourth Proportional to 7,500.12, 11,247.75 and 2,819.94

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Solution

The fourth proportional to 7,500.12, 11,247.75 and 2,819.94 is: 4,229.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,500.12 : 11,247.75 = 2,819.94 : x
  2. Step 2: Convert to fraction form
    7,500.12/11,247.75 = 2,819.94/x
  3. Step 3: Cross multiply
    7,500.12x = 11,247.75 × 2,819.94
  4. Step 4: Simplify right side
    7,500.12x = 31,717,980.14
  5. Step 5: Solve for x
    x = 31,717,980.14/7,500.12
  6. Step 6: Final answer
    x = 4,229.00

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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.