Home / 13,108.69-18,084.24-8,858.20

Finding the Fourth Proportional to 13,108.69, 18,084.24 and 8,858.20

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Solution

The fourth proportional to 13,108.69, 18,084.24 and 8,858.20 is: 12,220.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.69 : 18,084.24 = 8,858.20 : x
  2. Step 2: Convert to fraction form
    13,108.69/18,084.24 = 8,858.20/x
  3. Step 3: Cross multiply
    13,108.69x = 18,084.24 × 8,858.20
  4. Step 4: Simplify right side
    13,108.69x = 160,193,770.48
  5. Step 5: Solve for x
    x = 160,193,770.48/13,108.69
  6. Step 6: Final answer
    x = 12,220.43

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Half scale
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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.