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Finding the Fourth Proportional to 9,658.77, 14,487.03 and 2,638.50

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Solution

The fourth proportional to 9,658.77, 14,487.03 and 2,638.50 is: 3,957.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,658.77 : 14,487.03 = 2,638.50 : x
  2. Step 2: Convert to fraction form
    9,658.77/14,487.03 = 2,638.50/x
  3. Step 3: Cross multiply
    9,658.77x = 14,487.03 × 2,638.50
  4. Step 4: Simplify right side
    9,658.77x = 38,224,028.66
  5. Step 5: Solve for x
    x = 38,224,028.66/9,658.77
  6. Step 6: Final answer
    x = 3,957.44

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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.