Home / 19,105.24-28,660.88-9,245.28

Finding the Fourth Proportional to 19,105.24, 28,660.88 and 9,245.28

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Solution

The fourth proportional to 19,105.24, 28,660.88 and 9,245.28 is: 13,869.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.24 : 28,660.88 = 9,245.28 : x
  2. Step 2: Convert to fraction form
    19,105.24/28,660.88 = 9,245.28/x
  3. Step 3: Cross multiply
    19,105.24x = 28,660.88 × 9,245.28
  4. Step 4: Simplify right side
    19,105.24x = 264,977,860.65
  5. Step 5: Solve for x
    x = 264,977,860.65/19,105.24
  6. Step 6: Final answer
    x = 13,869.38

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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.