Home / 13,624.14-18,801.48-8,318.22

Finding the Fourth Proportional to 13,624.14, 18,801.48 and 8,318.22

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Solution

The fourth proportional to 13,624.14, 18,801.48 and 8,318.22 is: 11,479.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,624.14 : 18,801.48 = 8,318.22 : x
  2. Step 2: Convert to fraction form
    13,624.14/18,801.48 = 8,318.22/x
  3. Step 3: Cross multiply
    13,624.14x = 18,801.48 × 8,318.22
  4. Step 4: Simplify right side
    13,624.14x = 156,394,846.97
  5. Step 5: Solve for x
    x = 156,394,846.97/13,624.14
  6. Step 6: Final answer
    x = 11,479.25

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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.