Home / 18,100.53-27,134.09-12,556.49

Finding the Fourth Proportional to 18,100.53, 27,134.09 and 12,556.49

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Solution

The fourth proportional to 18,100.53, 27,134.09 and 12,556.49 is: 18,823.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,100.53 : 27,134.09 = 12,556.49 : x
  2. Step 2: Convert to fraction form
    18,100.53/27,134.09 = 12,556.49/x
  3. Step 3: Cross multiply
    18,100.53x = 27,134.09 × 12,556.49
  4. Step 4: Simplify right side
    18,100.53x = 340,708,929.74
  5. Step 5: Solve for x
    x = 340,708,929.74/18,100.53
  6. Step 6: Final answer
    x = 18,823.15

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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.