Home / 7,400.22-11,110.05-5,209.98

Finding the Fourth Proportional to 7,400.22, 11,110.05 and 5,209.98

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Solution

The fourth proportional to 7,400.22, 11,110.05 and 5,209.98 is: 7,821.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.22 : 11,110.05 = 5,209.98 : x
  2. Step 2: Convert to fraction form
    7,400.22/11,110.05 = 5,209.98/x
  3. Step 3: Cross multiply
    7,400.22x = 11,110.05 × 5,209.98
  4. Step 4: Simplify right side
    7,400.22x = 57,883,138.30
  5. Step 5: Solve for x
    x = 57,883,138.30/7,400.22
  6. Step 6: Final answer
    x = 7,821.81

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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.