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Finding the Fourth Proportional to 36,991.68, 55,487.04 and 9,289.68

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Solution

The fourth proportional to 36,991.68, 55,487.04 and 9,289.68 is: 13,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,991.68 : 55,487.04 = 9,289.68 : x
  2. Step 2: Convert to fraction form
    36,991.68/55,487.04 = 9,289.68/x
  3. Step 3: Cross multiply
    36,991.68x = 55,487.04 × 9,289.68
  4. Step 4: Simplify right side
    36,991.68x = 515,456,845.75
  5. Step 5: Solve for x
    x = 515,456,845.75/36,991.68
  6. Step 6: Final answer
    x = 13,934.40

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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.