Home / 18,963.48-28,451.28-9,103.44

Finding the Fourth Proportional to 18,963.48, 28,451.28 and 9,103.44

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Solution

The fourth proportional to 18,963.48, 28,451.28 and 9,103.44 is: 13,658.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,963.48 : 28,451.28 = 9,103.44 : x
  2. Step 2: Convert to fraction form
    18,963.48/28,451.28 = 9,103.44/x
  3. Step 3: Cross multiply
    18,963.48x = 28,451.28 × 9,103.44
  4. Step 4: Simplify right side
    18,963.48x = 259,004,520.40
  5. Step 5: Solve for x
    x = 259,004,520.40/18,963.48
  6. Step 6: Final answer
    x = 13,658.07

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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.