Home / 18,448.08-27,676.20-6,761.40

Finding the Fourth Proportional to 18,448.08, 27,676.20 and 6,761.40

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Solution

The fourth proportional to 18,448.08, 27,676.20 and 6,761.40 is: 10,143.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,448.08 : 27,676.20 = 6,761.40 : x
  2. Step 2: Convert to fraction form
    18,448.08/27,676.20 = 6,761.40/x
  3. Step 3: Cross multiply
    18,448.08x = 27,676.20 × 6,761.40
  4. Step 4: Simplify right side
    18,448.08x = 187,129,858.68
  5. Step 5: Solve for x
    x = 187,129,858.68/18,448.08
  6. Step 6: Final answer
    x = 10,143.60

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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.