Home / 11,408.16-15,742.80-6,372.30

Finding the Fourth Proportional to 11,408.16, 15,742.80 and 6,372.30

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Solution

The fourth proportional to 11,408.16, 15,742.80 and 6,372.30 is: 8,793.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,408.16 : 15,742.80 = 6,372.30 : x
  2. Step 2: Convert to fraction form
    11,408.16/15,742.80 = 6,372.30/x
  3. Step 3: Cross multiply
    11,408.16x = 15,742.80 × 6,372.30
  4. Step 4: Simplify right side
    11,408.16x = 100,317,844.44
  5. Step 5: Solve for x
    x = 100,317,844.44/11,408.16
  6. Step 6: Final answer
    x = 8,793.52

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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.