Home / 9,640.16-13,293.96-7,745.69

Finding the Fourth Proportional to 9,640.16, 13,293.96 and 7,745.69

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Solution

The fourth proportional to 9,640.16, 13,293.96 and 7,745.69 is: 10,681.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,640.16 : 13,293.96 = 7,745.69 : x
  2. Step 2: Convert to fraction form
    9,640.16/13,293.96 = 7,745.69/x
  3. Step 3: Cross multiply
    9,640.16x = 13,293.96 × 7,745.69
  4. Step 4: Simplify right side
    9,640.16x = 102,970,893.03
  5. Step 5: Solve for x
    x = 102,970,893.03/9,640.16
  6. Step 6: Final answer
    x = 10,681.45

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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.