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Finding the Fourth Proportional to 8,769.04, 12,087.84 and 6,997.84

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Solution

The fourth proportional to 8,769.04, 12,087.84 and 6,997.84 is: 9,646.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,769.04 : 12,087.84 = 6,997.84 : x
  2. Step 2: Convert to fraction form
    8,769.04/12,087.84 = 6,997.84/x
  3. Step 3: Cross multiply
    8,769.04x = 12,087.84 × 6,997.84
  4. Step 4: Simplify right side
    8,769.04x = 84,588,770.27
  5. Step 5: Solve for x
    x = 84,588,770.27/8,769.04
  6. Step 6: Final answer
    x = 9,646.30

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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.