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Finding the Fourth Proportional to 8,902.89, 13,365.27 and 8,443.62

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Solution

The fourth proportional to 8,902.89, 13,365.27 and 8,443.62 is: 12,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902.89 : 13,365.27 = 8,443.62 : x
  2. Step 2: Convert to fraction form
    8,902.89/13,365.27 = 8,443.62/x
  3. Step 3: Cross multiply
    8,902.89x = 13,365.27 × 8,443.62
  4. Step 4: Simplify right side
    8,902.89x = 112,851,261.08
  5. Step 5: Solve for x
    x = 112,851,261.08/8,902.89
  6. Step 6: Final answer
    x = 12,675.80

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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.