Home / 14,055.06-21,083.46-5,172.78

Finding the Fourth Proportional to 14,055.06, 21,083.46 and 5,172.78

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Solution

The fourth proportional to 14,055.06, 21,083.46 and 5,172.78 is: 7,759.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,055.06 : 21,083.46 = 5,172.78 : x
  2. Step 2: Convert to fraction form
    14,055.06/21,083.46 = 5,172.78/x
  3. Step 3: Cross multiply
    14,055.06x = 21,083.46 × 5,172.78
  4. Step 4: Simplify right side
    14,055.06x = 109,060,100.22
  5. Step 5: Solve for x
    x = 109,060,100.22/14,055.06
  6. Step 6: Final answer
    x = 7,759.49

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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.