Home / 18,519.68-27,784.32-7,426.76

Finding the Fourth Proportional to 18,519.68, 27,784.32 and 7,426.76

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Solution

The fourth proportional to 18,519.68, 27,784.32 and 7,426.76 is: 11,142.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.68 : 27,784.32 = 7,426.76 : x
  2. Step 2: Convert to fraction form
    18,519.68/27,784.32 = 7,426.76/x
  3. Step 3: Cross multiply
    18,519.68x = 27,784.32 × 7,426.76
  4. Step 4: Simplify right side
    18,519.68x = 206,347,476.40
  5. Step 5: Solve for x
    x = 206,347,476.40/18,519.68
  6. Step 6: Final answer
    x = 11,142.06

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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.