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Finding the Fourth Proportional to 9,586, 14,379.81 and 2,660.50

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Solution

The fourth proportional to 9,586, 14,379.81 and 2,660.50 is: 3,990.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,586 : 14,379.81 = 2,660.50 : x
  2. Step 2: Convert to fraction form
    9,586/14,379.81 = 2,660.50/x
  3. Step 3: Cross multiply
    9,586x = 14,379.81 × 2,660.50
  4. Step 4: Simplify right side
    9,586x = 38,257,484.51
  5. Step 5: Solve for x
    x = 38,257,484.51/9,586
  6. Step 6: Final answer
    x = 3,990.97

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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.