Home / 13,210.01-18,231.68-8,175.85

Finding the Fourth Proportional to 13,210.01, 18,231.68 and 8,175.85

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Solution

The fourth proportional to 13,210.01, 18,231.68 and 8,175.85 is: 11,283.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.01 : 18,231.68 = 8,175.85 : x
  2. Step 2: Convert to fraction form
    13,210.01/18,231.68 = 8,175.85/x
  3. Step 3: Cross multiply
    13,210.01x = 18,231.68 × 8,175.85
  4. Step 4: Simplify right side
    13,210.01x = 149,059,480.93
  5. Step 5: Solve for x
    x = 149,059,480.93/13,210.01
  6. Step 6: Final answer
    x = 11,283.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.