Home / 12,997.88-19,492.22-4,231.16

Finding the Fourth Proportional to 12,997.88, 19,492.22 and 4,231.16

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Solution

The fourth proportional to 12,997.88, 19,492.22 and 4,231.16 is: 6,345.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997.88 : 19,492.22 = 4,231.16 : x
  2. Step 2: Convert to fraction form
    12,997.88/19,492.22 = 4,231.16/x
  3. Step 3: Cross multiply
    12,997.88x = 19,492.22 × 4,231.16
  4. Step 4: Simplify right side
    12,997.88x = 82,474,701.58
  5. Step 5: Solve for x
    x = 82,474,701.58/12,997.88
  6. Step 6: Final answer
    x = 6,345.24

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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.