Home / 18,113.10-27,161.15-10,721.04

Finding the Fourth Proportional to 18,113.10, 27,161.15 and 10,721.04

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Solution

The fourth proportional to 18,113.10, 27,161.15 and 10,721.04 is: 16,076.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,113.10 : 27,161.15 = 10,721.04 : x
  2. Step 2: Convert to fraction form
    18,113.10/27,161.15 = 10,721.04/x
  3. Step 3: Cross multiply
    18,113.10x = 27,161.15 × 10,721.04
  4. Step 4: Simplify right side
    18,113.10x = 291,195,721.99
  5. Step 5: Solve for x
    x = 291,195,721.99/18,113.10
  6. Step 6: Final answer
    x = 16,076.53

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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.