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Finding the Fourth Proportional to 8,998.38, 13,486.05 and 7,885.26

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Solution

The fourth proportional to 8,998.38, 13,486.05 and 7,885.26 is: 11,817.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,998.38 : 13,486.05 = 7,885.26 : x
  2. Step 2: Convert to fraction form
    8,998.38/13,486.05 = 7,885.26/x
  3. Step 3: Cross multiply
    8,998.38x = 13,486.05 × 7,885.26
  4. Step 4: Simplify right side
    8,998.38x = 106,341,010.62
  5. Step 5: Solve for x
    x = 106,341,010.62/8,998.38
  6. Step 6: Final answer
    x = 11,817.80

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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.