Home / 18,120.79-27,176.26-4,970.04

Finding the Fourth Proportional to 18,120.79, 27,176.26 and 4,970.04

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Solution

The fourth proportional to 18,120.79, 27,176.26 and 4,970.04 is: 7,453.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.79 : 27,176.26 = 4,970.04 : x
  2. Step 2: Convert to fraction form
    18,120.79/27,176.26 = 4,970.04/x
  3. Step 3: Cross multiply
    18,120.79x = 27,176.26 × 4,970.04
  4. Step 4: Simplify right side
    18,120.79x = 135,067,099.25
  5. Step 5: Solve for x
    x = 135,067,099.25/18,120.79
  6. Step 6: Final answer
    x = 7,453.71

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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.