Home / 12,195.45-18,257.54-11,028.15

Finding the Fourth Proportional to 12,195.45, 18,257.54 and 11,028.15

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Solution

The fourth proportional to 12,195.45, 18,257.54 and 11,028.15 is: 16,510.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.45 : 18,257.54 = 11,028.15 : x
  2. Step 2: Convert to fraction form
    12,195.45/18,257.54 = 11,028.15/x
  3. Step 3: Cross multiply
    12,195.45x = 18,257.54 × 11,028.15
  4. Step 4: Simplify right side
    12,195.45x = 201,346,834.61
  5. Step 5: Solve for x
    x = 201,346,834.61/12,195.45
  6. Step 6: Final answer
    x = 16,510.00

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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.