Home / 13,631.33-20,446.97-4,272.07

Finding the Fourth Proportional to 13,631.33, 20,446.97 and 4,272.07

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Solution

The fourth proportional to 13,631.33, 20,446.97 and 4,272.07 is: 6,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.33 : 20,446.97 = 4,272.07 : x
  2. Step 2: Convert to fraction form
    13,631.33/20,446.97 = 4,272.07/x
  3. Step 3: Cross multiply
    13,631.33x = 20,446.97 × 4,272.07
  4. Step 4: Simplify right side
    13,631.33x = 87,350,887.13
  5. Step 5: Solve for x
    x = 87,350,887.13/13,631.33
  6. Step 6: Final answer
    x = 6,408.10

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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.