Home / 19,147.99-28,722.01-9,288.72

Finding the Fourth Proportional to 19,147.99, 28,722.01 and 9,288.72

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Solution

The fourth proportional to 19,147.99, 28,722.01 and 9,288.72 is: 13,933.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,147.99 : 28,722.01 = 9,288.72 : x
  2. Step 2: Convert to fraction form
    19,147.99/28,722.01 = 9,288.72/x
  3. Step 3: Cross multiply
    19,147.99x = 28,722.01 × 9,288.72
  4. Step 4: Simplify right side
    19,147.99x = 266,790,708.73
  5. Step 5: Solve for x
    x = 266,790,708.73/19,147.99
  6. Step 6: Final answer
    x = 13,933.09

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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.