Home / 11,172.78-16,754.58-4,153.28

Finding the Fourth Proportional to 11,172.78, 16,754.58 and 4,153.28

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Solution

The fourth proportional to 11,172.78, 16,754.58 and 4,153.28 is: 6,228.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.78 : 16,754.58 = 4,153.28 : x
  2. Step 2: Convert to fraction form
    11,172.78/16,754.58 = 4,153.28/x
  3. Step 3: Cross multiply
    11,172.78x = 16,754.58 × 4,153.28
  4. Step 4: Simplify right side
    11,172.78x = 69,586,378.25
  5. Step 5: Solve for x
    x = 69,586,378.25/11,172.78
  6. Step 6: Final answer
    x = 6,228.21

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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.