Home / 7,429.32-11,147.18-3,729.64

Finding the Fourth Proportional to 7,429.32, 11,147.18 and 3,729.64

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Solution

The fourth proportional to 7,429.32, 11,147.18 and 3,729.64 is: 5,596.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.32 : 11,147.18 = 3,729.64 : x
  2. Step 2: Convert to fraction form
    7,429.32/11,147.18 = 3,729.64/x
  3. Step 3: Cross multiply
    7,429.32x = 11,147.18 × 3,729.64
  4. Step 4: Simplify right side
    7,429.32x = 41,574,968.42
  5. Step 5: Solve for x
    x = 41,574,968.42/7,429.32
  6. Step 6: Final answer
    x = 5,596.07

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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.