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Finding the Fourth Proportional to 8,685.88, 13,019.24 and 4,004.56

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Solution

The fourth proportional to 8,685.88, 13,019.24 and 4,004.56 is: 6,002.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.88 : 13,019.24 = 4,004.56 : x
  2. Step 2: Convert to fraction form
    8,685.88/13,019.24 = 4,004.56/x
  3. Step 3: Cross multiply
    8,685.88x = 13,019.24 × 4,004.56
  4. Step 4: Simplify right side
    8,685.88x = 52,136,305.20
  5. Step 5: Solve for x
    x = 52,136,305.20/8,685.88
  6. Step 6: Final answer
    x = 6,002.42

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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.