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Finding the Fourth Proportional to 8,985.99, 13,546.26 and 8,383.88

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Solution

The fourth proportional to 8,985.99, 13,546.26 and 8,383.88 is: 12,638.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.99 : 13,546.26 = 8,383.88 : x
  2. Step 2: Convert to fraction form
    8,985.99/13,546.26 = 8,383.88/x
  3. Step 3: Cross multiply
    8,985.99x = 13,546.26 × 8,383.88
  4. Step 4: Simplify right side
    8,985.99x = 113,570,237.64
  5. Step 5: Solve for x
    x = 113,570,237.64/8,985.99
  6. Step 6: Final answer
    x = 12,638.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.