Home / 18,745.60-28,121.64-6,266.20

Finding the Fourth Proportional to 18,745.60, 28,121.64 and 6,266.20

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Solution

The fourth proportional to 18,745.60, 28,121.64 and 6,266.20 is: 9,400.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.60 : 28,121.64 = 6,266.20 : x
  2. Step 2: Convert to fraction form
    18,745.60/28,121.64 = 6,266.20/x
  3. Step 3: Cross multiply
    18,745.60x = 28,121.64 × 6,266.20
  4. Step 4: Simplify right side
    18,745.60x = 176,215,820.57
  5. Step 5: Solve for x
    x = 176,215,820.57/18,745.60
  6. Step 6: Final answer
    x = 9,400.38

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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.