Home / 19,145.99-28,715.74-5,291.75

Finding the Fourth Proportional to 19,145.99, 28,715.74 and 5,291.75

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Solution

The fourth proportional to 19,145.99, 28,715.74 and 5,291.75 is: 7,936.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,145.99 : 28,715.74 = 5,291.75 : x
  2. Step 2: Convert to fraction form
    19,145.99/28,715.74 = 5,291.75/x
  3. Step 3: Cross multiply
    19,145.99x = 28,715.74 × 5,291.75
  4. Step 4: Simplify right side
    19,145.99x = 151,956,517.15
  5. Step 5: Solve for x
    x = 151,956,517.15/19,145.99
  6. Step 6: Final answer
    x = 7,936.73

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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.