Home / 13,620.52-18,797.68-9,153.57

Finding the Fourth Proportional to 13,620.52, 18,797.68 and 9,153.57

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Solution

The fourth proportional to 13,620.52, 18,797.68 and 9,153.57 is: 12,632.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620.52 : 18,797.68 = 9,153.57 : x
  2. Step 2: Convert to fraction form
    13,620.52/18,797.68 = 9,153.57/x
  3. Step 3: Cross multiply
    13,620.52x = 18,797.68 × 9,153.57
  4. Step 4: Simplify right side
    13,620.52x = 172,065,879.72
  5. Step 5: Solve for x
    x = 172,065,879.72/13,620.52
  6. Step 6: Final answer
    x = 12,632.84

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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.