Home / 19,173.16-28,755.42-7,480.36

Finding the Fourth Proportional to 19,173.16, 28,755.42 and 7,480.36

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Solution

The fourth proportional to 19,173.16, 28,755.42 and 7,480.36 is: 11,218.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,173.16 : 28,755.42 = 7,480.36 : x
  2. Step 2: Convert to fraction form
    19,173.16/28,755.42 = 7,480.36/x
  3. Step 3: Cross multiply
    19,173.16x = 28,755.42 × 7,480.36
  4. Step 4: Simplify right side
    19,173.16x = 215,100,893.55
  5. Step 5: Solve for x
    x = 215,100,893.55/19,173.16
  6. Step 6: Final answer
    x = 11,218.85

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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.