Home / 36,654.59-54,983.15-12,638.60

Finding the Fourth Proportional to 36,654.59, 54,983.15 and 12,638.60

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Solution

The fourth proportional to 36,654.59, 54,983.15 and 12,638.60 is: 18,958.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,654.59 : 54,983.15 = 12,638.60 : x
  2. Step 2: Convert to fraction form
    36,654.59/54,983.15 = 12,638.60/x
  3. Step 3: Cross multiply
    36,654.59x = 54,983.15 × 12,638.60
  4. Step 4: Simplify right side
    36,654.59x = 694,909,701.48
  5. Step 5: Solve for x
    x = 694,909,701.48/36,654.59
  6. Step 6: Final answer
    x = 18,958.33

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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.