Home / 7,549.20-10,409.04-5,311.44

Finding the Fourth Proportional to 7,549.20, 10,409.04 and 5,311.44

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Solution

The fourth proportional to 7,549.20, 10,409.04 and 5,311.44 is: 7,323.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,549.20 : 10,409.04 = 5,311.44 : x
  2. Step 2: Convert to fraction form
    7,549.20/10,409.04 = 5,311.44/x
  3. Step 3: Cross multiply
    7,549.20x = 10,409.04 × 5,311.44
  4. Step 4: Simplify right side
    7,549.20x = 55,286,991.42
  5. Step 5: Solve for x
    x = 55,286,991.42/7,549.20
  6. Step 6: Final answer
    x = 7,323.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.