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Finding the Fourth Proportional to 8,696.84, 12,084.90 and 8,606.53

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Solution

The fourth proportional to 8,696.84, 12,084.90 and 8,606.53 is: 11,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696.84 : 12,084.90 = 8,606.53 : x
  2. Step 2: Convert to fraction form
    8,696.84/12,084.90 = 8,606.53/x
  3. Step 3: Cross multiply
    8,696.84x = 12,084.90 × 8,606.53
  4. Step 4: Simplify right side
    8,696.84x = 104,008,950.94
  5. Step 5: Solve for x
    x = 104,008,950.94/8,696.84
  6. Step 6: Final answer
    x = 11,959.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.