Home / 13,211.10-19,817.66-3,851.25

Finding the Fourth Proportional to 13,211.10, 19,817.66 and 3,851.25

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Solution

The fourth proportional to 13,211.10, 19,817.66 and 3,851.25 is: 5,777.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211.10 : 19,817.66 = 3,851.25 : x
  2. Step 2: Convert to fraction form
    13,211.10/19,817.66 = 3,851.25/x
  3. Step 3: Cross multiply
    13,211.10x = 19,817.66 × 3,851.25
  4. Step 4: Simplify right side
    13,211.10x = 76,322,698.39
  5. Step 5: Solve for x
    x = 76,322,698.39/13,211.10
  6. Step 6: Final answer
    x = 5,777.16

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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.