Home / 7,989.40-11,025.48-4,452.49

Finding the Fourth Proportional to 7,989.40, 11,025.48 and 4,452.49

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Solution

The fourth proportional to 7,989.40, 11,025.48 and 4,452.49 is: 6,144.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.40 : 11,025.48 = 4,452.49 : x
  2. Step 2: Convert to fraction form
    7,989.40/11,025.48 = 4,452.49/x
  3. Step 3: Cross multiply
    7,989.40x = 11,025.48 × 4,452.49
  4. Step 4: Simplify right side
    7,989.40x = 49,090,839.45
  5. Step 5: Solve for x
    x = 49,090,839.45/7,989.40
  6. Step 6: Final answer
    x = 6,144.50

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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.