Home / 18,620.56-27,932.58-6,140.68

Finding the Fourth Proportional to 18,620.56, 27,932.58 and 6,140.68

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Solution

The fourth proportional to 18,620.56, 27,932.58 and 6,140.68 is: 9,211.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,620.56 : 27,932.58 = 6,140.68 : x
  2. Step 2: Convert to fraction form
    18,620.56/27,932.58 = 6,140.68/x
  3. Step 3: Cross multiply
    18,620.56x = 27,932.58 × 6,140.68
  4. Step 4: Simplify right side
    18,620.56x = 171,525,035.35
  5. Step 5: Solve for x
    x = 171,525,035.35/18,620.56
  6. Step 6: Final answer
    x = 9,211.59

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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.