Home / 11,743.20-17,613.08-3,420.98

Finding the Fourth Proportional to 11,743.20, 17,613.08 and 3,420.98

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Solution

The fourth proportional to 11,743.20, 17,613.08 and 3,420.98 is: 5,130.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,743.20 : 17,613.08 = 3,420.98 : x
  2. Step 2: Convert to fraction form
    11,743.20/17,613.08 = 3,420.98/x
  3. Step 3: Cross multiply
    11,743.20x = 17,613.08 × 3,420.98
  4. Step 4: Simplify right side
    11,743.20x = 60,253,994.42
  5. Step 5: Solve for x
    x = 60,253,994.42/11,743.20
  6. Step 6: Final answer
    x = 5,130.97

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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.