Home / 9,629.94-13,289.30-5,438.20

Finding the Fourth Proportional to 9,629.94, 13,289.30 and 5,438.20

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Solution

The fourth proportional to 9,629.94, 13,289.30 and 5,438.20 is: 7,504.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,629.94 : 13,289.30 = 5,438.20 : x
  2. Step 2: Convert to fraction form
    9,629.94/13,289.30 = 5,438.20/x
  3. Step 3: Cross multiply
    9,629.94x = 13,289.30 × 5,438.20
  4. Step 4: Simplify right side
    9,629.94x = 72,269,871.26
  5. Step 5: Solve for x
    x = 72,269,871.26/9,629.94
  6. Step 6: Final answer
    x = 7,504.71

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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.