Home / 18,403.08-27,519.84-13,668.18

Finding the Fourth Proportional to 18,403.08, 27,519.84 and 13,668.18

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Solution

The fourth proportional to 18,403.08, 27,519.84 and 13,668.18 is: 20,439.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.08 : 27,519.84 = 13,668.18 : x
  2. Step 2: Convert to fraction form
    18,403.08/27,519.84 = 13,668.18/x
  3. Step 3: Cross multiply
    18,403.08x = 27,519.84 × 13,668.18
  4. Step 4: Simplify right side
    18,403.08x = 376,146,126.69
  5. Step 5: Solve for x
    x = 376,146,126.69/18,403.08
  6. Step 6: Final answer
    x = 20,439.30

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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.