Home / 11,221.82-15,487.50-6,747.92

Finding the Fourth Proportional to 11,221.82, 15,487.50 and 6,747.92

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Solution

The fourth proportional to 11,221.82, 15,487.50 and 6,747.92 is: 9,312.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.82 : 15,487.50 = 6,747.92 : x
  2. Step 2: Convert to fraction form
    11,221.82/15,487.50 = 6,747.92/x
  3. Step 3: Cross multiply
    11,221.82x = 15,487.50 × 6,747.92
  4. Step 4: Simplify right side
    11,221.82x = 104,508,411
  5. Step 5: Solve for x
    x = 104,508,411/11,221.82
  6. Step 6: Final answer
    x = 9,312.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.