Home / 13,170.45-19,755.69-5,379.27

Finding the Fourth Proportional to 13,170.45, 19,755.69 and 5,379.27

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Solution

The fourth proportional to 13,170.45, 19,755.69 and 5,379.27 is: 8,068.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.45 : 19,755.69 = 5,379.27 : x
  2. Step 2: Convert to fraction form
    13,170.45/19,755.69 = 5,379.27/x
  3. Step 3: Cross multiply
    13,170.45x = 19,755.69 × 5,379.27
  4. Step 4: Simplify right side
    13,170.45x = 106,271,190.55
  5. Step 5: Solve for x
    x = 106,271,190.55/13,170.45
  6. Step 6: Final answer
    x = 8,068.91

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Similar ratio
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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.