Home / 18,446.10-27,632.70-10,111.20

Finding the Fourth Proportional to 18,446.10, 27,632.70 and 10,111.20

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Solution

The fourth proportional to 18,446.10, 27,632.70 and 10,111.20 is: 15,146.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,446.10 : 27,632.70 = 10,111.20 : x
  2. Step 2: Convert to fraction form
    18,446.10/27,632.70 = 10,111.20/x
  3. Step 3: Cross multiply
    18,446.10x = 27,632.70 × 10,111.20
  4. Step 4: Simplify right side
    18,446.10x = 279,399,756.24
  5. Step 5: Solve for x
    x = 279,399,756.24/18,446.10
  6. Step 6: Final answer
    x = 15,146.82

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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.