Home / 9,621.33-13,277.16-5,642.21

Finding the Fourth Proportional to 9,621.33, 13,277.16 and 5,642.21

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Solution

The fourth proportional to 9,621.33, 13,277.16 and 5,642.21 is: 7,786.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,621.33 : 13,277.16 = 5,642.21 : x
  2. Step 2: Convert to fraction form
    9,621.33/13,277.16 = 5,642.21/x
  3. Step 3: Cross multiply
    9,621.33x = 13,277.16 × 5,642.21
  4. Step 4: Simplify right side
    9,621.33x = 74,912,458.54
  5. Step 5: Solve for x
    x = 74,912,458.54/9,621.33
  6. Step 6: Final answer
    x = 7,786.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.