Home / 16,772.20-25,136.70-7,988.20

Finding the Fourth Proportional to 16,772.20, 25,136.70 and 7,988.20

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Solution

The fourth proportional to 16,772.20, 25,136.70 and 7,988.20 is: 11,972.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,772.20 : 25,136.70 = 7,988.20 : x
  2. Step 2: Convert to fraction form
    16,772.20/25,136.70 = 7,988.20/x
  3. Step 3: Cross multiply
    16,772.20x = 25,136.70 × 7,988.20
  4. Step 4: Simplify right side
    16,772.20x = 200,796,986.94
  5. Step 5: Solve for x
    x = 200,796,986.94/16,772.20
  6. Step 6: Final answer
    x = 11,972.01

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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.