Home / 13,568.39-20,346.35-7,645.11

Finding the Fourth Proportional to 13,568.39, 20,346.35 and 7,645.11

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Solution

The fourth proportional to 13,568.39, 20,346.35 and 7,645.11 is: 11,464.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.39 : 20,346.35 = 7,645.11 : x
  2. Step 2: Convert to fraction form
    13,568.39/20,346.35 = 7,645.11/x
  3. Step 3: Cross multiply
    13,568.39x = 20,346.35 × 7,645.11
  4. Step 4: Simplify right side
    13,568.39x = 155,550,083.85
  5. Step 5: Solve for x
    x = 155,550,083.85/13,568.39
  6. Step 6: Final answer
    x = 11,464.15

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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.