Home / 18,128.92-27,196.26-7,740.76

Finding the Fourth Proportional to 18,128.92, 27,196.26 and 7,740.76

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Solution

The fourth proportional to 18,128.92, 27,196.26 and 7,740.76 is: 11,612.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.92 : 27,196.26 = 7,740.76 : x
  2. Step 2: Convert to fraction form
    18,128.92/27,196.26 = 7,740.76/x
  3. Step 3: Cross multiply
    18,128.92x = 27,196.26 × 7,740.76
  4. Step 4: Simplify right side
    18,128.92x = 210,519,721.56
  5. Step 5: Solve for x
    x = 210,519,721.56/18,128.92
  6. Step 6: Final answer
    x = 11,612.37

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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.