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Finding the Fourth Proportional to 8,392.90, 12,588.81 and 2,549.56

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Solution

The fourth proportional to 8,392.90, 12,588.81 and 2,549.56 is: 3,824.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392.90 : 12,588.81 = 2,549.56 : x
  2. Step 2: Convert to fraction form
    8,392.90/12,588.81 = 2,549.56/x
  3. Step 3: Cross multiply
    8,392.90x = 12,588.81 × 2,549.56
  4. Step 4: Simplify right side
    8,392.90x = 32,095,926.42
  5. Step 5: Solve for x
    x = 32,095,926.42/8,392.90
  6. Step 6: Final answer
    x = 3,824.18

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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.