Home / 18,297.02-27,439.38-7,200.80

Finding the Fourth Proportional to 18,297.02, 27,439.38 and 7,200.80

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Solution

The fourth proportional to 18,297.02, 27,439.38 and 7,200.80 is: 10,798.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,297.02 : 27,439.38 = 7,200.80 : x
  2. Step 2: Convert to fraction form
    18,297.02/27,439.38 = 7,200.80/x
  3. Step 3: Cross multiply
    18,297.02x = 27,439.38 × 7,200.80
  4. Step 4: Simplify right side
    18,297.02x = 197,585,487.50
  5. Step 5: Solve for x
    x = 197,585,487.50/18,297.02
  6. Step 6: Final answer
    x = 10,798.78

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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.