Home / 18,273.42-25,209.09-10,720.17

Finding the Fourth Proportional to 18,273.42, 25,209.09 and 10,720.17

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Solution

The fourth proportional to 18,273.42, 25,209.09 and 10,720.17 is: 14,789.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,273.42 : 25,209.09 = 10,720.17 : x
  2. Step 2: Convert to fraction form
    18,273.42/25,209.09 = 10,720.17/x
  3. Step 3: Cross multiply
    18,273.42x = 25,209.09 × 10,720.17
  4. Step 4: Simplify right side
    18,273.42x = 270,245,730.35
  5. Step 5: Solve for x
    x = 270,245,730.35/18,273.42
  6. Step 6: Final answer
    x = 14,789.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.