Home / 13,064.82-18,034.97-8,821.62

Finding the Fourth Proportional to 13,064.82, 18,034.97 and 8,821.62

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Solution

The fourth proportional to 13,064.82, 18,034.97 and 8,821.62 is: 12,177.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,064.82 : 18,034.97 = 8,821.62 : x
  2. Step 2: Convert to fraction form
    13,064.82/18,034.97 = 8,821.62/x
  3. Step 3: Cross multiply
    13,064.82x = 18,034.97 × 8,821.62
  4. Step 4: Simplify right side
    13,064.82x = 159,097,652.05
  5. Step 5: Solve for x
    x = 159,097,652.05/13,064.82
  6. Step 6: Final answer
    x = 12,177.56

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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.