Home / 13,631.96-20,415.13-9,236.09

Finding the Fourth Proportional to 13,631.96, 20,415.13 and 9,236.09

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Solution

The fourth proportional to 13,631.96, 20,415.13 and 9,236.09 is: 13,831.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.96 : 20,415.13 = 9,236.09 : x
  2. Step 2: Convert to fraction form
    13,631.96/20,415.13 = 9,236.09/x
  3. Step 3: Cross multiply
    13,631.96x = 20,415.13 × 9,236.09
  4. Step 4: Simplify right side
    13,631.96x = 188,555,978.04
  5. Step 5: Solve for x
    x = 188,555,978.04/13,631.96
  6. Step 6: Final answer
    x = 13,831.91

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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.