Home / 9,255.54-12,768.21-5,717.46

Finding the Fourth Proportional to 9,255.54, 12,768.21 and 5,717.46

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Solution

The fourth proportional to 9,255.54, 12,768.21 and 5,717.46 is: 7,887.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,255.54 : 12,768.21 = 5,717.46 : x
  2. Step 2: Convert to fraction form
    9,255.54/12,768.21 = 5,717.46/x
  3. Step 3: Cross multiply
    9,255.54x = 12,768.21 × 5,717.46
  4. Step 4: Simplify right side
    9,255.54x = 73,001,729.95
  5. Step 5: Solve for x
    x = 73,001,729.95/9,255.54
  6. Step 6: Final answer
    x = 7,887.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.