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Finding the Fourth Proportional to 8,699.43, 13,047.63 and 4,019.06

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Solution

The fourth proportional to 8,699.43, 13,047.63 and 4,019.06 is: 6,027.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.43 : 13,047.63 = 4,019.06 : x
  2. Step 2: Convert to fraction form
    8,699.43/13,047.63 = 4,019.06/x
  3. Step 3: Cross multiply
    8,699.43x = 13,047.63 × 4,019.06
  4. Step 4: Simplify right side
    8,699.43x = 52,439,142.59
  5. Step 5: Solve for x
    x = 52,439,142.59/8,699.43
  6. Step 6: Final answer
    x = 6,027.88

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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.