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Finding the Fourth Proportional to 8,999.70, 13,500.09 and 2,760.09

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Solution

The fourth proportional to 8,999.70, 13,500.09 and 2,760.09 is: 4,140.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999.70 : 13,500.09 = 2,760.09 : x
  2. Step 2: Convert to fraction form
    8,999.70/13,500.09 = 2,760.09/x
  3. Step 3: Cross multiply
    8,999.70x = 13,500.09 × 2,760.09
  4. Step 4: Simplify right side
    8,999.70x = 37,261,463.41
  5. Step 5: Solve for x
    x = 37,261,463.41/8,999.70
  6. Step 6: Final answer
    x = 4,140.30

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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.