Home / 13,077.38-19,616.06-5,286.19

Finding the Fourth Proportional to 13,077.38, 19,616.06 and 5,286.19

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Solution

The fourth proportional to 13,077.38, 19,616.06 and 5,286.19 is: 7,929.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.38 : 19,616.06 = 5,286.19 : x
  2. Step 2: Convert to fraction form
    13,077.38/19,616.06 = 5,286.19/x
  3. Step 3: Cross multiply
    13,077.38x = 19,616.06 × 5,286.19
  4. Step 4: Simplify right side
    13,077.38x = 103,694,220.21
  5. Step 5: Solve for x
    x = 103,694,220.21/13,077.38
  6. Step 6: Final answer
    x = 7,929.28

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Similar ratio
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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.