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Finding the Fourth Proportional to 8,694.04, 11,997.78 and 4,715.20

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Solution

The fourth proportional to 8,694.04, 11,997.78 and 4,715.20 is: 6,506.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,694.04 : 11,997.78 = 4,715.20 : x
  2. Step 2: Convert to fraction form
    8,694.04/11,997.78 = 4,715.20/x
  3. Step 3: Cross multiply
    8,694.04x = 11,997.78 × 4,715.20
  4. Step 4: Simplify right side
    8,694.04x = 56,571,932.26
  5. Step 5: Solve for x
    x = 56,571,932.26/8,694.04
  6. Step 6: Final answer
    x = 6,506.98

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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.