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Finding the Fourth Proportional to 12,807.35, 19,211.02 and 6,887.03

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Solution

The fourth proportional to 12,807.35, 19,211.02 and 6,887.03 is: 10,330.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,807.35 : 19,211.02 = 6,887.03 : x
  2. Step 2: Convert to fraction form
    12,807.35/19,211.02 = 6,887.03/x
  3. Step 3: Cross multiply
    12,807.35x = 19,211.02 × 6,887.03
  4. Step 4: Simplify right side
    12,807.35x = 132,306,796.54
  5. Step 5: Solve for x
    x = 132,306,796.54/12,807.35
  6. Step 6: Final answer
    x = 10,330.54

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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.