Home / 9,791.26-13,511.96-5,315.01

Finding the Fourth Proportional to 9,791.26, 13,511.96 and 5,315.01

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Solution

The fourth proportional to 9,791.26, 13,511.96 and 5,315.01 is: 7,334.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,791.26 : 13,511.96 = 5,315.01 : x
  2. Step 2: Convert to fraction form
    9,791.26/13,511.96 = 5,315.01/x
  3. Step 3: Cross multiply
    9,791.26x = 13,511.96 × 5,315.01
  4. Step 4: Simplify right side
    9,791.26x = 71,816,202.52
  5. Step 5: Solve for x
    x = 71,816,202.52/9,791.26
  6. Step 6: Final answer
    x = 7,334.73

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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.