Home / 18,810.72-28,217.97-6,967.68

Finding the Fourth Proportional to 18,810.72, 28,217.97 and 6,967.68

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Solution

The fourth proportional to 18,810.72, 28,217.97 and 6,967.68 is: 10,452.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,810.72 : 28,217.97 = 6,967.68 : x
  2. Step 2: Convert to fraction form
    18,810.72/28,217.97 = 6,967.68/x
  3. Step 3: Cross multiply
    18,810.72x = 28,217.97 × 6,967.68
  4. Step 4: Simplify right side
    18,810.72x = 196,613,785.21
  5. Step 5: Solve for x
    x = 196,613,785.21/18,810.72
  6. Step 6: Final answer
    x = 10,452.22

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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.