Home / 7,923.20-11,884.80-2,729.48

Finding the Fourth Proportional to 7,923.20, 11,884.80 and 2,729.48

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Solution

The fourth proportional to 7,923.20, 11,884.80 and 2,729.48 is: 4,094.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.20 : 11,884.80 = 2,729.48 : x
  2. Step 2: Convert to fraction form
    7,923.20/11,884.80 = 2,729.48/x
  3. Step 3: Cross multiply
    7,923.20x = 11,884.80 × 2,729.48
  4. Step 4: Simplify right side
    7,923.20x = 32,439,264.48
  5. Step 5: Solve for x
    x = 32,439,264.48/7,923.20
  6. Step 6: Final answer
    x = 4,094.22

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1.5x scale

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.