Home / 7,989.03-10,999.53-6,791.58

Finding the Fourth Proportional to 7,989.03, 10,999.53 and 6,791.58

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Solution

The fourth proportional to 7,989.03, 10,999.53 and 6,791.58 is: 9,350.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.03 : 10,999.53 = 6,791.58 : x
  2. Step 2: Convert to fraction form
    7,989.03/10,999.53 = 6,791.58/x
  3. Step 3: Cross multiply
    7,989.03x = 10,999.53 × 6,791.58
  4. Step 4: Simplify right side
    7,989.03x = 74,704,187.96
  5. Step 5: Solve for x
    x = 74,704,187.96/7,989.03
  6. Step 6: Final answer
    x = 9,350.85

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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.