Home / 15,154.91-20,906.54-11,774.59

Finding the Fourth Proportional to 15,154.91, 20,906.54 and 11,774.59

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Solution

The fourth proportional to 15,154.91, 20,906.54 and 11,774.59 is: 16,243.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,154.91 : 20,906.54 = 11,774.59 : x
  2. Step 2: Convert to fraction form
    15,154.91/20,906.54 = 11,774.59/x
  3. Step 3: Cross multiply
    15,154.91x = 20,906.54 × 11,774.59
  4. Step 4: Simplify right side
    15,154.91x = 246,165,825.68
  5. Step 5: Solve for x
    x = 246,165,825.68/15,154.91
  6. Step 6: Final answer
    x = 16,243.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.