Home / 12,410.12-18,619.20-5,010.80

Finding the Fourth Proportional to 12,410.12, 18,619.20 and 5,010.80

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Solution

The fourth proportional to 12,410.12, 18,619.20 and 5,010.80 is: 7,517.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,410.12 : 18,619.20 = 5,010.80 : x
  2. Step 2: Convert to fraction form
    12,410.12/18,619.20 = 5,010.80/x
  3. Step 3: Cross multiply
    12,410.12x = 18,619.20 × 5,010.80
  4. Step 4: Simplify right side
    12,410.12x = 93,297,087.36
  5. Step 5: Solve for x
    x = 93,297,087.36/12,410.12
  6. Step 6: Final answer
    x = 7,517.82

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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.