Home / 10,192.98-15,288.66-3,172.80

Finding the Fourth Proportional to 10,192.98, 15,288.66 and 3,172.80

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Solution

The fourth proportional to 10,192.98, 15,288.66 and 3,172.80 is: 4,758.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,192.98 : 15,288.66 = 3,172.80 : x
  2. Step 2: Convert to fraction form
    10,192.98/15,288.66 = 3,172.80/x
  3. Step 3: Cross multiply
    10,192.98x = 15,288.66 × 3,172.80
  4. Step 4: Simplify right side
    10,192.98x = 48,507,860.45
  5. Step 5: Solve for x
    x = 48,507,860.45/10,192.98
  6. Step 6: Final answer
    x = 4,758.95

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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.