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Finding the Fourth Proportional to 11,893.98, 17,820.84 and 7,199.76

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Solution

The fourth proportional to 11,893.98, 17,820.84 and 7,199.76 is: 10,787.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,893.98 : 17,820.84 = 7,199.76 : x
  2. Step 2: Convert to fraction form
    11,893.98/17,820.84 = 7,199.76/x
  3. Step 3: Cross multiply
    11,893.98x = 17,820.84 × 7,199.76
  4. Step 4: Simplify right side
    11,893.98x = 128,305,771.00
  5. Step 5: Solve for x
    x = 128,305,771.00/11,893.98
  6. Step 6: Final answer
    x = 10,787.45

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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.