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Finding the Fourth Proportional to 8,696.07, 12,005.19 and 6,803.64

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Solution

The fourth proportional to 8,696.07, 12,005.19 and 6,803.64 is: 9,392.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696.07 : 12,005.19 = 6,803.64 : x
  2. Step 2: Convert to fraction form
    8,696.07/12,005.19 = 6,803.64/x
  3. Step 3: Cross multiply
    8,696.07x = 12,005.19 × 6,803.64
  4. Step 4: Simplify right side
    8,696.07x = 81,678,990.89
  5. Step 5: Solve for x
    x = 81,678,990.89/8,696.07
  6. Step 6: Final answer
    x = 9,392.63

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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.