Home / 13,854.32-20,769.08-5,087.18

Finding the Fourth Proportional to 13,854.32, 20,769.08 and 5,087.18

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Solution

The fourth proportional to 13,854.32, 20,769.08 and 5,087.18 is: 7,626.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854.32 : 20,769.08 = 5,087.18 : x
  2. Step 2: Convert to fraction form
    13,854.32/20,769.08 = 5,087.18/x
  3. Step 3: Cross multiply
    13,854.32x = 20,769.08 × 5,087.18
  4. Step 4: Simplify right side
    13,854.32x = 105,656,074.88
  5. Step 5: Solve for x
    x = 105,656,074.88/13,854.32
  6. Step 6: Final answer
    x = 7,626.22

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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.