Home / 10,198.10-15,301.58-5,521.43

Finding the Fourth Proportional to 10,198.10, 15,301.58 and 5,521.43

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Solution

The fourth proportional to 10,198.10, 15,301.58 and 5,521.43 is: 8,284.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198.10 : 15,301.58 = 5,521.43 : x
  2. Step 2: Convert to fraction form
    10,198.10/15,301.58 = 5,521.43/x
  3. Step 3: Cross multiply
    10,198.10x = 15,301.58 × 5,521.43
  4. Step 4: Simplify right side
    10,198.10x = 84,486,613.51
  5. Step 5: Solve for x
    x = 84,486,613.51/10,198.10
  6. Step 6: Final answer
    x = 8,284.54

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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.