Home / 16,772.80-25,173.60-7,427.20

Finding the Fourth Proportional to 16,772.80, 25,173.60 and 7,427.20

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Solution

The fourth proportional to 16,772.80, 25,173.60 and 7,427.20 is: 11,147.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,772.80 : 25,173.60 = 7,427.20 : x
  2. Step 2: Convert to fraction form
    16,772.80/25,173.60 = 7,427.20/x
  3. Step 3: Cross multiply
    16,772.80x = 25,173.60 × 7,427.20
  4. Step 4: Simplify right side
    16,772.80x = 186,969,361.92
  5. Step 5: Solve for x
    x = 186,969,361.92/16,772.80
  6. Step 6: Final answer
    x = 11,147.18

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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.