Home / 19,375.38-29,067.30-7,688.34

Finding the Fourth Proportional to 19,375.38, 29,067.30 and 7,688.34

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Solution

The fourth proportional to 19,375.38, 29,067.30 and 7,688.34 is: 11,534.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,375.38 : 29,067.30 = 7,688.34 : x
  2. Step 2: Convert to fraction form
    19,375.38/29,067.30 = 7,688.34/x
  3. Step 3: Cross multiply
    19,375.38x = 29,067.30 × 7,688.34
  4. Step 4: Simplify right side
    19,375.38x = 223,479,285.28
  5. Step 5: Solve for x
    x = 223,479,285.28/19,375.38
  6. Step 6: Final answer
    x = 11,534.19

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Half scale
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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.