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Finding the Fourth Proportional to 19,298.79, 28,948.28 and 6,817.39

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Solution

The fourth proportional to 19,298.79, 28,948.28 and 6,817.39 is: 10,226.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,298.79 : 28,948.28 = 6,817.39 : x
  2. Step 2: Convert to fraction form
    19,298.79/28,948.28 = 6,817.39/x
  3. Step 3: Cross multiply
    19,298.79x = 28,948.28 × 6,817.39
  4. Step 4: Simplify right side
    19,298.79x = 197,351,608.13
  5. Step 5: Solve for x
    x = 197,351,608.13/19,298.79
  6. Step 6: Final answer
    x = 10,226.11

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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.