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Finding the Fourth Proportional to 10,004.56, 15,006.84 and 3,079

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Solution

The fourth proportional to 10,004.56, 15,006.84 and 3,079 is: 4,618.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,004.56 : 15,006.84 = 3,079 : x
  2. Step 2: Convert to fraction form
    10,004.56/15,006.84 = 3,079/x
  3. Step 3: Cross multiply
    10,004.56x = 15,006.84 × 3,079
  4. Step 4: Simplify right side
    10,004.56x = 46,206,060.36
  5. Step 5: Solve for x
    x = 46,206,060.36/10,004.56
  6. Step 6: Final answer
    x = 4,618.50

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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.