Home / 7,487.76-11,221.65-3,540.06

Finding the Fourth Proportional to 7,487.76, 11,221.65 and 3,540.06

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Solution

The fourth proportional to 7,487.76, 11,221.65 and 3,540.06 is: 5,305.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.76 : 11,221.65 = 3,540.06 : x
  2. Step 2: Convert to fraction form
    7,487.76/11,221.65 = 3,540.06/x
  3. Step 3: Cross multiply
    7,487.76x = 11,221.65 × 3,540.06
  4. Step 4: Simplify right side
    7,487.76x = 39,725,314.30
  5. Step 5: Solve for x
    x = 39,725,314.30/7,487.76
  6. Step 6: Final answer
    x = 5,305.37

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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.