Home / 7,741.36-11,627.88-5,112.72

Finding the Fourth Proportional to 7,741.36, 11,627.88 and 5,112.72

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Solution

The fourth proportional to 7,741.36, 11,627.88 and 5,112.72 is: 7,679.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,741.36 : 11,627.88 = 5,112.72 : x
  2. Step 2: Convert to fraction form
    7,741.36/11,627.88 = 5,112.72/x
  3. Step 3: Cross multiply
    7,741.36x = 11,627.88 × 5,112.72
  4. Step 4: Simplify right side
    7,741.36x = 59,450,094.63
  5. Step 5: Solve for x
    x = 59,450,094.63/7,741.36
  6. Step 6: Final answer
    x = 7,679.54

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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.