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Finding the Fourth Proportional to 7,665.82, 11,496.12 and 2,985.46

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Solution

The fourth proportional to 7,665.82, 11,496.12 and 2,985.46 is: 4,477.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,665.82 : 11,496.12 = 2,985.46 : x
  2. Step 2: Convert to fraction form
    7,665.82/11,496.12 = 2,985.46/x
  3. Step 3: Cross multiply
    7,665.82x = 11,496.12 × 2,985.46
  4. Step 4: Simplify right side
    7,665.82x = 34,321,206.42
  5. Step 5: Solve for x
    x = 34,321,206.42/7,665.82
  6. Step 6: Final answer
    x = 4,477.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.