Home / 12,997.18-19,497.80-4,230.03

Finding the Fourth Proportional to 12,997.18, 19,497.80 and 4,230.03

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Solution

The fourth proportional to 12,997.18, 19,497.80 and 4,230.03 is: 6,345.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997.18 : 19,497.80 = 4,230.03 : x
  2. Step 2: Convert to fraction form
    12,997.18/19,497.80 = 4,230.03/x
  3. Step 3: Cross multiply
    12,997.18x = 19,497.80 × 4,230.03
  4. Step 4: Simplify right side
    12,997.18x = 82,476,278.93
  5. Step 5: Solve for x
    x = 82,476,278.93/12,997.18
  6. Step 6: Final answer
    x = 6,345.71

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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.