Home / 9,628.41-13,286.73-5,378.63

Finding the Fourth Proportional to 9,628.41, 13,286.73 and 5,378.63

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Solution

The fourth proportional to 9,628.41, 13,286.73 and 5,378.63 is: 7,422.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,628.41 : 13,286.73 = 5,378.63 : x
  2. Step 2: Convert to fraction form
    9,628.41/13,286.73 = 5,378.63/x
  3. Step 3: Cross multiply
    9,628.41x = 13,286.73 × 5,378.63
  4. Step 4: Simplify right side
    9,628.41x = 71,464,338.15
  5. Step 5: Solve for x
    x = 71,464,338.15/9,628.41
  6. Step 6: Final answer
    x = 7,422.24

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Double scale
Find fourth proportional to 9,629.41, 13,288.11 and 5,379.63
Similar ratio
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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.