Home / 18,734.34-25,856.11-11,180.99

Finding the Fourth Proportional to 18,734.34, 25,856.11 and 11,180.99

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Solution

The fourth proportional to 18,734.34, 25,856.11 and 11,180.99 is: 15,431.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,734.34 : 25,856.11 = 11,180.99 : x
  2. Step 2: Convert to fraction form
    18,734.34/25,856.11 = 11,180.99/x
  3. Step 3: Cross multiply
    18,734.34x = 25,856.11 × 11,180.99
  4. Step 4: Simplify right side
    18,734.34x = 289,096,907.35
  5. Step 5: Solve for x
    x = 289,096,907.35/18,734.34
  6. Step 6: Final answer
    x = 15,431.39

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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.