Home / 18,748.38-25,874.36-10,684.50

Finding the Fourth Proportional to 18,748.38, 25,874.36 and 10,684.50

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Solution

The fourth proportional to 18,748.38, 25,874.36 and 10,684.50 is: 14,745.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748.38 : 25,874.36 = 10,684.50 : x
  2. Step 2: Convert to fraction form
    18,748.38/25,874.36 = 10,684.50/x
  3. Step 3: Cross multiply
    18,748.38x = 25,874.36 × 10,684.50
  4. Step 4: Simplify right side
    18,748.38x = 276,454,591.86
  5. Step 5: Solve for x
    x = 276,454,591.86/18,748.38
  6. Step 6: Final answer
    x = 14,745.52

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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.