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Finding the Fourth Proportional to 19,150.80, 28,728.90 and 6,001.80

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Solution

The fourth proportional to 19,150.80, 28,728.90 and 6,001.80 is: 9,003.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,150.80 : 28,728.90 = 6,001.80 : x
  2. Step 2: Convert to fraction form
    19,150.80/28,728.90 = 6,001.80/x
  3. Step 3: Cross multiply
    19,150.80x = 28,728.90 × 6,001.80
  4. Step 4: Simplify right side
    19,150.80x = 172,425,112.02
  5. Step 5: Solve for x
    x = 172,425,112.02/19,150.80
  6. Step 6: Final answer
    x = 9,003.55

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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.