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Finding the Fourth Proportional to 8,446.84, 12,679.17 and 6,904.60

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Solution

The fourth proportional to 8,446.84, 12,679.17 and 6,904.60 is: 10,364.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,446.84 : 12,679.17 = 6,904.60 : x
  2. Step 2: Convert to fraction form
    8,446.84/12,679.17 = 6,904.60/x
  3. Step 3: Cross multiply
    8,446.84x = 12,679.17 × 6,904.60
  4. Step 4: Simplify right side
    8,446.84x = 87,544,597.18
  5. Step 5: Solve for x
    x = 87,544,597.18/8,446.84
  6. Step 6: Final answer
    x = 10,364.18

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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.