Home / 7,975.65-10,999.76-4,986.03

Finding the Fourth Proportional to 7,975.65, 10,999.76 and 4,986.03

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Solution

The fourth proportional to 7,975.65, 10,999.76 and 4,986.03 is: 6,876.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.65 : 10,999.76 = 4,986.03 : x
  2. Step 2: Convert to fraction form
    7,975.65/10,999.76 = 4,986.03/x
  3. Step 3: Cross multiply
    7,975.65x = 10,999.76 × 4,986.03
  4. Step 4: Simplify right side
    7,975.65x = 54,845,108.42
  5. Step 5: Solve for x
    x = 54,845,108.42/7,975.65
  6. Step 6: Final answer
    x = 6,876.57

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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.