Home / 12,199.95-18,324.50-11,855.43

Finding the Fourth Proportional to 12,199.95, 18,324.50 and 11,855.43

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Solution

The fourth proportional to 12,199.95, 18,324.50 and 11,855.43 is: 17,807.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,199.95 : 18,324.50 = 11,855.43 : x
  2. Step 2: Convert to fraction form
    12,199.95/18,324.50 = 11,855.43/x
  3. Step 3: Cross multiply
    12,199.95x = 18,324.50 × 11,855.43
  4. Step 4: Simplify right side
    12,199.95x = 217,244,767.76
  5. Step 5: Solve for x
    x = 217,244,767.76/12,199.95
  6. Step 6: Final answer
    x = 17,807.02

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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.