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Finding the Fourth Proportional to 12,606.66, 18,907.83 and 3,370.50

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Solution

The fourth proportional to 12,606.66, 18,907.83 and 3,370.50 is: 5,055.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,606.66 : 18,907.83 = 3,370.50 : x
  2. Step 2: Convert to fraction form
    12,606.66/18,907.83 = 3,370.50/x
  3. Step 3: Cross multiply
    12,606.66x = 18,907.83 × 3,370.50
  4. Step 4: Simplify right side
    12,606.66x = 63,728,841.02
  5. Step 5: Solve for x
    x = 63,728,841.02/12,606.66
  6. Step 6: Final answer
    x = 5,055.17

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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.