Home / 7,487.06-11,208.17-7,220.92

Finding the Fourth Proportional to 7,487.06, 11,208.17 and 7,220.92

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Solution

The fourth proportional to 7,487.06, 11,208.17 and 7,220.92 is: 10,809.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.06 : 11,208.17 = 7,220.92 : x
  2. Step 2: Convert to fraction form
    7,487.06/11,208.17 = 7,220.92/x
  3. Step 3: Cross multiply
    7,487.06x = 11,208.17 × 7,220.92
  4. Step 4: Simplify right side
    7,487.06x = 80,933,234.79
  5. Step 5: Solve for x
    x = 80,933,234.79/7,487.06
  6. Step 6: Final answer
    x = 10,809.75

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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.