Home / 11,164.53-15,408.48-6,447.90

Finding the Fourth Proportional to 11,164.53, 15,408.48 and 6,447.90

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Solution

The fourth proportional to 11,164.53, 15,408.48 and 6,447.90 is: 8,898.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,164.53 : 15,408.48 = 6,447.90 : x
  2. Step 2: Convert to fraction form
    11,164.53/15,408.48 = 6,447.90/x
  3. Step 3: Cross multiply
    11,164.53x = 15,408.48 × 6,447.90
  4. Step 4: Simplify right side
    11,164.53x = 99,352,383.88
  5. Step 5: Solve for x
    x = 99,352,383.88/11,164.53
  6. Step 6: Final answer
    x = 8,898.93

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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.