Home / 12,997.83-19,496.75-3,137.10

Finding the Fourth Proportional to 12,997.83, 19,496.75 and 3,137.10

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Solution

The fourth proportional to 12,997.83, 19,496.75 and 3,137.10 is: 4,705.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997.83 : 19,496.75 = 3,137.10 : x
  2. Step 2: Convert to fraction form
    12,997.83/19,496.75 = 3,137.10/x
  3. Step 3: Cross multiply
    12,997.83x = 19,496.75 × 3,137.10
  4. Step 4: Simplify right side
    12,997.83x = 61,163,238.74
  5. Step 5: Solve for x
    x = 61,163,238.74/12,997.83
  6. Step 6: Final answer
    x = 4,705.65

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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.