Home / 7,989.28-11,025.28-4,452.48

Finding the Fourth Proportional to 7,989.28, 11,025.28 and 4,452.48

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Solution

The fourth proportional to 7,989.28, 11,025.28 and 4,452.48 is: 6,144.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.28 : 11,025.28 = 4,452.48 : x
  2. Step 2: Convert to fraction form
    7,989.28/11,025.28 = 4,452.48/x
  3. Step 3: Cross multiply
    7,989.28x = 11,025.28 × 4,452.48
  4. Step 4: Simplify right side
    7,989.28x = 49,089,838.69
  5. Step 5: Solve for x
    x = 49,089,838.69/7,989.28
  6. Step 6: Final answer
    x = 6,144.46

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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.