Home / 18,308.60-27,467.40-5,160.80

Finding the Fourth Proportional to 18,308.60, 27,467.40 and 5,160.80

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Solution

The fourth proportional to 18,308.60, 27,467.40 and 5,160.80 is: 7,742.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,308.60 : 27,467.40 = 5,160.80 : x
  2. Step 2: Convert to fraction form
    18,308.60/27,467.40 = 5,160.80/x
  3. Step 3: Cross multiply
    18,308.60x = 27,467.40 × 5,160.80
  4. Step 4: Simplify right side
    18,308.60x = 141,753,757.92
  5. Step 5: Solve for x
    x = 141,753,757.92/18,308.60
  6. Step 6: Final answer
    x = 7,742.47

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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.