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Finding the Fourth Proportional to 8,999.65, 13,499.37 and 3,076.48

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Solution

The fourth proportional to 8,999.65, 13,499.37 and 3,076.48 is: 4,614.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999.65 : 13,499.37 = 3,076.48 : x
  2. Step 2: Convert to fraction form
    8,999.65/13,499.37 = 3,076.48/x
  3. Step 3: Cross multiply
    8,999.65x = 13,499.37 × 3,076.48
  4. Step 4: Simplify right side
    8,999.65x = 41,530,541.82
  5. Step 5: Solve for x
    x = 41,530,541.82/8,999.65
  6. Step 6: Final answer
    x = 4,614.68

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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.