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Finding the Fourth Proportional to 19,236.70, 28,851.40 and 6,753.79

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Solution

The fourth proportional to 19,236.70, 28,851.40 and 6,753.79 is: 10,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,236.70 : 28,851.40 = 6,753.79 : x
  2. Step 2: Convert to fraction form
    19,236.70/28,851.40 = 6,753.79/x
  3. Step 3: Cross multiply
    19,236.70x = 28,851.40 × 6,753.79
  4. Step 4: Simplify right side
    19,236.70x = 194,856,296.81
  5. Step 5: Solve for x
    x = 194,856,296.81/19,236.70
  6. Step 6: Final answer
    x = 10,129.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.