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Finding the Fourth Proportional to 9,376.97, 13,985.97 and 7,905.90

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Solution

The fourth proportional to 9,376.97, 13,985.97 and 7,905.90 is: 11,791.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,376.97 : 13,985.97 = 7,905.90 : x
  2. Step 2: Convert to fraction form
    9,376.97/13,985.97 = 7,905.90/x
  3. Step 3: Cross multiply
    9,376.97x = 13,985.97 × 7,905.90
  4. Step 4: Simplify right side
    9,376.97x = 110,571,703.02
  5. Step 5: Solve for x
    x = 110,571,703.02/9,376.97
  6. Step 6: Final answer
    x = 11,791.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.