Home / 11,215.44-15,474.24-7,237.80

Finding the Fourth Proportional to 11,215.44, 15,474.24 and 7,237.80

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Solution

The fourth proportional to 11,215.44, 15,474.24 and 7,237.80 is: 9,986.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.44 : 15,474.24 = 7,237.80 : x
  2. Step 2: Convert to fraction form
    11,215.44/15,474.24 = 7,237.80/x
  3. Step 3: Cross multiply
    11,215.44x = 15,474.24 × 7,237.80
  4. Step 4: Simplify right side
    11,215.44x = 111,999,454.27
  5. Step 5: Solve for x
    x = 111,999,454.27/11,215.44
  6. Step 6: Final answer
    x = 9,986.18

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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.