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Finding the Fourth Proportional to 7,499.88, 11,249.82 and 3,393

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Solution

The fourth proportional to 7,499.88, 11,249.82 and 3,393 is: 5,089.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,499.88 : 11,249.82 = 3,393 : x
  2. Step 2: Convert to fraction form
    7,499.88/11,249.82 = 3,393/x
  3. Step 3: Cross multiply
    7,499.88x = 11,249.82 × 3,393
  4. Step 4: Simplify right side
    7,499.88x = 38,170,639.26
  5. Step 5: Solve for x
    x = 38,170,639.26/7,499.88
  6. Step 6: Final answer
    x = 5,089.50

Related Problems

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Half scale
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Double scale
Find fourth proportional to 7,500.88, 11,251.32 and 3,394
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.