Home / 12,809.28-19,213.23-3,924.60

Finding the Fourth Proportional to 12,809.28, 19,213.23 and 3,924.60

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Solution

The fourth proportional to 12,809.28, 19,213.23 and 3,924.60 is: 5,886.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,809.28 : 19,213.23 = 3,924.60 : x
  2. Step 2: Convert to fraction form
    12,809.28/19,213.23 = 3,924.60/x
  3. Step 3: Cross multiply
    12,809.28x = 19,213.23 × 3,924.60
  4. Step 4: Simplify right side
    12,809.28x = 75,404,242.46
  5. Step 5: Solve for x
    x = 75,404,242.46/12,809.28
  6. Step 6: Final answer
    x = 5,886.69

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Double scale
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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.