Home / 12,997.12-19,495.68-5,103.36

Finding the Fourth Proportional to 12,997.12, 19,495.68 and 5,103.36

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Solution

The fourth proportional to 12,997.12, 19,495.68 and 5,103.36 is: 7,655.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997.12 : 19,495.68 = 5,103.36 : x
  2. Step 2: Convert to fraction form
    12,997.12/19,495.68 = 5,103.36/x
  3. Step 3: Cross multiply
    12,997.12x = 19,495.68 × 5,103.36
  4. Step 4: Simplify right side
    12,997.12x = 99,493,387.62
  5. Step 5: Solve for x
    x = 99,493,387.62/12,997.12
  6. Step 6: Final answer
    x = 7,655.03

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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.