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Finding the Fourth Proportional to 8,684.11, 13,018.84 and 5,902.98

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Solution

The fourth proportional to 8,684.11, 13,018.84 and 5,902.98 is: 8,849.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,684.11 : 13,018.84 = 5,902.98 : x
  2. Step 2: Convert to fraction form
    8,684.11/13,018.84 = 5,902.98/x
  3. Step 3: Cross multiply
    8,684.11x = 13,018.84 × 5,902.98
  4. Step 4: Simplify right side
    8,684.11x = 76,849,952.14
  5. Step 5: Solve for x
    x = 76,849,952.14/8,684.11
  6. Step 6: Final answer
    x = 8,849.49

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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.