Home / 7,945.48-11,926.86-6,718.60

Finding the Fourth Proportional to 7,945.48, 11,926.86 and 6,718.60

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Solution

The fourth proportional to 7,945.48, 11,926.86 and 6,718.60 is: 10,085.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.48 : 11,926.86 = 6,718.60 : x
  2. Step 2: Convert to fraction form
    7,945.48/11,926.86 = 6,718.60/x
  3. Step 3: Cross multiply
    7,945.48x = 11,926.86 × 6,718.60
  4. Step 4: Simplify right side
    7,945.48x = 80,131,801.60
  5. Step 5: Solve for x
    x = 80,131,801.60/7,945.48
  6. Step 6: Final answer
    x = 10,085.21

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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.