Home / 11,153.98-16,728.31-3,254.45

Finding the Fourth Proportional to 11,153.98, 16,728.31 and 3,254.45

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Solution

The fourth proportional to 11,153.98, 16,728.31 and 3,254.45 is: 4,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.98 : 16,728.31 = 3,254.45 : x
  2. Step 2: Convert to fraction form
    11,153.98/16,728.31 = 3,254.45/x
  3. Step 3: Cross multiply
    11,153.98x = 16,728.31 × 3,254.45
  4. Step 4: Simplify right side
    11,153.98x = 54,441,448.48
  5. Step 5: Solve for x
    x = 54,441,448.48/11,153.98
  6. Step 6: Final answer
    x = 4,880.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.