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Finding the Fourth Proportional to 8,666.82, 11,960.10 and 4,889.94

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Solution

The fourth proportional to 8,666.82, 11,960.10 and 4,889.94 is: 6,748.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.82 : 11,960.10 = 4,889.94 : x
  2. Step 2: Convert to fraction form
    8,666.82/11,960.10 = 4,889.94/x
  3. Step 3: Cross multiply
    8,666.82x = 11,960.10 × 4,889.94
  4. Step 4: Simplify right side
    8,666.82x = 58,484,171.39
  5. Step 5: Solve for x
    x = 58,484,171.39/8,666.82
  6. Step 6: Final answer
    x = 6,748.05

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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.