Home / 7,121.67-10,682.55-4,672.02

Finding the Fourth Proportional to 7,121.67, 10,682.55 and 4,672.02

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Solution

The fourth proportional to 7,121.67, 10,682.55 and 4,672.02 is: 7,008.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.67 : 10,682.55 = 4,672.02 : x
  2. Step 2: Convert to fraction form
    7,121.67/10,682.55 = 4,672.02/x
  3. Step 3: Cross multiply
    7,121.67x = 10,682.55 × 4,672.02
  4. Step 4: Simplify right side
    7,121.67x = 49,909,087.25
  5. Step 5: Solve for x
    x = 49,909,087.25/7,121.67
  6. Step 6: Final answer
    x = 7,008.06

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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.