Home / 12,392.36-18,588.54-5,471.72

Finding the Fourth Proportional to 12,392.36, 18,588.54 and 5,471.72

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Solution

The fourth proportional to 12,392.36, 18,588.54 and 5,471.72 is: 8,207.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.36 : 18,588.54 = 5,471.72 : x
  2. Step 2: Convert to fraction form
    12,392.36/18,588.54 = 5,471.72/x
  3. Step 3: Cross multiply
    12,392.36x = 18,588.54 × 5,471.72
  4. Step 4: Simplify right side
    12,392.36x = 101,711,286.09
  5. Step 5: Solve for x
    x = 101,711,286.09/12,392.36
  6. Step 6: Final answer
    x = 8,207.58

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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.