Home / 12,997.42-19,497.75-4,229.98

Finding the Fourth Proportional to 12,997.42, 19,497.75 and 4,229.98

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Solution

The fourth proportional to 12,997.42, 19,497.75 and 4,229.98 is: 6,345.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997.42 : 19,497.75 = 4,229.98 : x
  2. Step 2: Convert to fraction form
    12,997.42/19,497.75 = 4,229.98/x
  3. Step 3: Cross multiply
    12,997.42x = 19,497.75 × 4,229.98
  4. Step 4: Simplify right side
    12,997.42x = 82,475,092.55
  5. Step 5: Solve for x
    x = 82,475,092.55/12,997.42
  6. Step 6: Final answer
    x = 6,345.50

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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.