Home / 18,189.59-25,095.44-11,021.72

Finding the Fourth Proportional to 18,189.59, 25,095.44 and 11,021.72

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Solution

The fourth proportional to 18,189.59, 25,095.44 and 11,021.72 is: 15,206.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,189.59 : 25,095.44 = 11,021.72 : x
  2. Step 2: Convert to fraction form
    18,189.59/25,095.44 = 11,021.72/x
  3. Step 3: Cross multiply
    18,189.59x = 25,095.44 × 11,021.72
  4. Step 4: Simplify right side
    18,189.59x = 276,594,815.03
  5. Step 5: Solve for x
    x = 276,594,815.03/18,189.59
  6. Step 6: Final answer
    x = 15,206.22

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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.