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Finding the Fourth Proportional to 8,630.84, 12,927.29 and 7,133.09

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Solution

The fourth proportional to 8,630.84, 12,927.29 and 7,133.09 is: 10,683.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.84 : 12,927.29 = 7,133.09 : x
  2. Step 2: Convert to fraction form
    8,630.84/12,927.29 = 7,133.09/x
  3. Step 3: Cross multiply
    8,630.84x = 12,927.29 × 7,133.09
  4. Step 4: Simplify right side
    8,630.84x = 92,211,519.68
  5. Step 5: Solve for x
    x = 92,211,519.68/8,630.84
  6. Step 6: Final answer
    x = 10,683.95

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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.