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Finding the Fourth Proportional to 8,392.85, 12,589.98 and 2,549.51

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Solution

The fourth proportional to 8,392.85, 12,589.98 and 2,549.51 is: 3,824.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392.85 : 12,589.98 = 2,549.51 : x
  2. Step 2: Convert to fraction form
    8,392.85/12,589.98 = 2,549.51/x
  3. Step 3: Cross multiply
    8,392.85x = 12,589.98 × 2,549.51
  4. Step 4: Simplify right side
    8,392.85x = 32,098,204.21
  5. Step 5: Solve for x
    x = 32,098,204.21/8,392.85
  6. Step 6: Final answer
    x = 3,824.47

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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.