Home / 13,632.19-20,451.87-4,272.51

Finding the Fourth Proportional to 13,632.19, 20,451.87 and 4,272.51

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Solution

The fourth proportional to 13,632.19, 20,451.87 and 4,272.51 is: 6,409.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.19 : 20,451.87 = 4,272.51 : x
  2. Step 2: Convert to fraction form
    13,632.19/20,451.87 = 4,272.51/x
  3. Step 3: Cross multiply
    13,632.19x = 20,451.87 × 4,272.51
  4. Step 4: Simplify right side
    13,632.19x = 87,380,797.49
  5. Step 5: Solve for x
    x = 87,380,797.49/13,632.19
  6. Step 6: Final answer
    x = 6,409.89

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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.