Home / 9,991.27-14,986.90-2,971.25

Finding the Fourth Proportional to 9,991.27, 14,986.90 and 2,971.25

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Solution

The fourth proportional to 9,991.27, 14,986.90 and 2,971.25 is: 4,456.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,991.27 : 14,986.90 = 2,971.25 : x
  2. Step 2: Convert to fraction form
    9,991.27/14,986.90 = 2,971.25/x
  3. Step 3: Cross multiply
    9,991.27x = 14,986.90 × 2,971.25
  4. Step 4: Simplify right side
    9,991.27x = 44,529,826.63
  5. Step 5: Solve for x
    x = 44,529,826.63/9,991.27
  6. Step 6: Final answer
    x = 4,456.87

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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.