Home / 11,986.08-16,539.76-6,681.12

Finding the Fourth Proportional to 11,986.08, 16,539.76 and 6,681.12

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Solution

The fourth proportional to 11,986.08, 16,539.76 and 6,681.12 is: 9,219.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.08 : 16,539.76 = 6,681.12 : x
  2. Step 2: Convert to fraction form
    11,986.08/16,539.76 = 6,681.12/x
  3. Step 3: Cross multiply
    11,986.08x = 16,539.76 × 6,681.12
  4. Step 4: Simplify right side
    11,986.08x = 110,504,121.33
  5. Step 5: Solve for x
    x = 110,504,121.33/11,986.08
  6. Step 6: Final answer
    x = 9,219.37

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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.