Home / 18,440.13-27,660.20-6,128.13

Finding the Fourth Proportional to 18,440.13, 27,660.20 and 6,128.13

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Solution

The fourth proportional to 18,440.13, 27,660.20 and 6,128.13 is: 9,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,440.13 : 27,660.20 = 6,128.13 : x
  2. Step 2: Convert to fraction form
    18,440.13/27,660.20 = 6,128.13/x
  3. Step 3: Cross multiply
    18,440.13x = 27,660.20 × 6,128.13
  4. Step 4: Simplify right side
    18,440.13x = 169,505,301.43
  5. Step 5: Solve for x
    x = 169,505,301.43/18,440.13
  6. Step 6: Final answer
    x = 9,192.20

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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.