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Finding the Fourth Proportional to 8,696.35, 12,000.89 and 4,867.99

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Solution

The fourth proportional to 8,696.35, 12,000.89 and 4,867.99 is: 6,717.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696.35 : 12,000.89 = 4,867.99 : x
  2. Step 2: Convert to fraction form
    8,696.35/12,000.89 = 4,867.99/x
  3. Step 3: Cross multiply
    8,696.35x = 12,000.89 × 4,867.99
  4. Step 4: Simplify right side
    8,696.35x = 58,420,152.51
  5. Step 5: Solve for x
    x = 58,420,152.51/8,696.35
  6. Step 6: Final answer
    x = 6,717.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.