Home / 11,153.37-15,391.20-6,674.49

Finding the Fourth Proportional to 11,153.37, 15,391.20 and 6,674.49

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Solution

The fourth proportional to 11,153.37, 15,391.20 and 6,674.49 is: 9,210.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.37 : 15,391.20 = 6,674.49 : x
  2. Step 2: Convert to fraction form
    11,153.37/15,391.20 = 6,674.49/x
  3. Step 3: Cross multiply
    11,153.37x = 15,391.20 × 6,674.49
  4. Step 4: Simplify right side
    11,153.37x = 102,728,410.49
  5. Step 5: Solve for x
    x = 102,728,410.49/11,153.37
  6. Step 6: Final answer
    x = 9,210.53

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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.