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Finding the Fourth Proportional to 19,202.88, 28,817.28 and 7,514.64

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Solution

The fourth proportional to 19,202.88, 28,817.28 and 7,514.64 is: 11,277.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,202.88 : 28,817.28 = 7,514.64 : x
  2. Step 2: Convert to fraction form
    19,202.88/28,817.28 = 7,514.64/x
  3. Step 3: Cross multiply
    19,202.88x = 28,817.28 × 7,514.64
  4. Step 4: Simplify right side
    19,202.88x = 216,551,484.98
  5. Step 5: Solve for x
    x = 216,551,484.98/19,202.88
  6. Step 6: Final answer
    x = 11,277.03

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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.