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Finding the Fourth Proportional to 8,625.30, 12,938.03 and 4,727.58

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Solution

The fourth proportional to 8,625.30, 12,938.03 and 4,727.58 is: 7,091.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,625.30 : 12,938.03 = 4,727.58 : x
  2. Step 2: Convert to fraction form
    8,625.30/12,938.03 = 4,727.58/x
  3. Step 3: Cross multiply
    8,625.30x = 12,938.03 × 4,727.58
  4. Step 4: Simplify right side
    8,625.30x = 61,165,548.23
  5. Step 5: Solve for x
    x = 61,165,548.23/8,625.30
  6. Step 6: Final answer
    x = 7,091.41

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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.