Home / 11,407.82-15,742.63-6,372.12

Finding the Fourth Proportional to 11,407.82, 15,742.63 and 6,372.12

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Solution

The fourth proportional to 11,407.82, 15,742.63 and 6,372.12 is: 8,793.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,407.82 : 15,742.63 = 6,372.12 : x
  2. Step 2: Convert to fraction form
    11,407.82/15,742.63 = 6,372.12/x
  3. Step 3: Cross multiply
    11,407.82x = 15,742.63 × 6,372.12
  4. Step 4: Simplify right side
    11,407.82x = 100,313,816.90
  5. Step 5: Solve for x
    x = 100,313,816.90/11,407.82
  6. Step 6: Final answer
    x = 8,793.43

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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.