Home / 6,223.28-9,289.38-5,485.20

Finding the Fourth Proportional to 6,223.28, 9,289.38 and 5,485.20

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Solution

The fourth proportional to 6,223.28, 9,289.38 and 5,485.20 is: 8,187.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,223.28 : 9,289.38 = 5,485.20 : x
  2. Step 2: Convert to fraction form
    6,223.28/9,289.38 = 5,485.20/x
  3. Step 3: Cross multiply
    6,223.28x = 9,289.38 × 5,485.20
  4. Step 4: Simplify right side
    6,223.28x = 50,954,107.18
  5. Step 5: Solve for x
    x = 50,954,107.18/6,223.28
  6. Step 6: Final answer
    x = 8,187.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.