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Finding the Fourth Proportional to 8,991.79, 13,486.16 and 4,060.28

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Solution

The fourth proportional to 8,991.79, 13,486.16 and 4,060.28 is: 6,089.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.79 : 13,486.16 = 4,060.28 : x
  2. Step 2: Convert to fraction form
    8,991.79/13,486.16 = 4,060.28/x
  3. Step 3: Cross multiply
    8,991.79x = 13,486.16 × 4,060.28
  4. Step 4: Simplify right side
    8,991.79x = 54,757,553.73
  5. Step 5: Solve for x
    x = 54,757,553.73/8,991.79
  6. Step 6: Final answer
    x = 6,089.73

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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.