Home / 13,200.62-18,209.95-8,163.23

Finding the Fourth Proportional to 13,200.62, 18,209.95 and 8,163.23

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Solution

The fourth proportional to 13,200.62, 18,209.95 and 8,163.23 is: 11,260.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.62 : 18,209.95 = 8,163.23 : x
  2. Step 2: Convert to fraction form
    13,200.62/18,209.95 = 8,163.23/x
  3. Step 3: Cross multiply
    13,200.62x = 18,209.95 × 8,163.23
  4. Step 4: Simplify right side
    13,200.62x = 148,651,878.27
  5. Step 5: Solve for x
    x = 148,651,878.27/13,200.62
  6. Step 6: Final answer
    x = 11,260.98

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Double scale
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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.