Home / 18,555.60-27,837.72-5,407.68

Finding the Fourth Proportional to 18,555.60, 27,837.72 and 5,407.68

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Solution

The fourth proportional to 18,555.60, 27,837.72 and 5,407.68 is: 8,112.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555.60 : 27,837.72 = 5,407.68 : x
  2. Step 2: Convert to fraction form
    18,555.60/27,837.72 = 5,407.68/x
  3. Step 3: Cross multiply
    18,555.60x = 27,837.72 × 5,407.68
  4. Step 4: Simplify right side
    18,555.60x = 150,537,481.69
  5. Step 5: Solve for x
    x = 150,537,481.69/18,555.60
  6. Step 6: Final answer
    x = 8,112.78

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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.