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Finding the Fourth Proportional to 11,374.88, 17,042.16 and 7,905.44

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Solution

The fourth proportional to 11,374.88, 17,042.16 and 7,905.44 is: 11,844.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,374.88 : 17,042.16 = 7,905.44 : x
  2. Step 2: Convert to fraction form
    11,374.88/17,042.16 = 7,905.44/x
  3. Step 3: Cross multiply
    11,374.88x = 17,042.16 × 7,905.44
  4. Step 4: Simplify right side
    11,374.88x = 134,725,773.35
  5. Step 5: Solve for x
    x = 134,725,773.35/11,374.88
  6. Step 6: Final answer
    x = 11,844.15

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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.