Home / 19,198.05-28,799.50-7,509.75

Finding the Fourth Proportional to 19,198.05, 28,799.50 and 7,509.75

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Solution

The fourth proportional to 19,198.05, 28,799.50 and 7,509.75 is: 11,265.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,198.05 : 28,799.50 = 7,509.75 : x
  2. Step 2: Convert to fraction form
    19,198.05/28,799.50 = 7,509.75/x
  3. Step 3: Cross multiply
    19,198.05x = 28,799.50 × 7,509.75
  4. Step 4: Simplify right side
    19,198.05x = 216,276,919.90
  5. Step 5: Solve for x
    x = 216,276,919.90/19,198.05
  6. Step 6: Final answer
    x = 11,265.57

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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.