Home / 18,209.17-25,140.24-13,189.99

Finding the Fourth Proportional to 18,209.17, 25,140.24 and 13,189.99

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Solution

The fourth proportional to 18,209.17, 25,140.24 and 13,189.99 is: 18,210.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,209.17 : 25,140.24 = 13,189.99 : x
  2. Step 2: Convert to fraction form
    18,209.17/25,140.24 = 13,189.99/x
  3. Step 3: Cross multiply
    18,209.17x = 25,140.24 × 13,189.99
  4. Step 4: Simplify right side
    18,209.17x = 331,599,514.20
  5. Step 5: Solve for x
    x = 331,599,514.20/18,209.17
  6. Step 6: Final answer
    x = 18,210.58

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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.