Home / 7,429.42-11,129.68-4,132.52

Finding the Fourth Proportional to 7,429.42, 11,129.68 and 4,132.52

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Solution

The fourth proportional to 7,429.42, 11,129.68 and 4,132.52 is: 6,190.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.42 : 11,129.68 = 4,132.52 : x
  2. Step 2: Convert to fraction form
    7,429.42/11,129.68 = 4,132.52/x
  3. Step 3: Cross multiply
    7,429.42x = 11,129.68 × 4,132.52
  4. Step 4: Simplify right side
    7,429.42x = 45,993,548.88
  5. Step 5: Solve for x
    x = 45,993,548.88/7,429.42
  6. Step 6: Final answer
    x = 6,190.74

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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.