Home / 9,640.23-13,252.38-8,290.86

Finding the Fourth Proportional to 9,640.23, 13,252.38 and 8,290.86

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Solution

The fourth proportional to 9,640.23, 13,252.38 and 8,290.86 is: 11,397.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,640.23 : 13,252.38 = 8,290.86 : x
  2. Step 2: Convert to fraction form
    9,640.23/13,252.38 = 8,290.86/x
  3. Step 3: Cross multiply
    9,640.23x = 13,252.38 × 8,290.86
  4. Step 4: Simplify right side
    9,640.23x = 109,873,627.25
  5. Step 5: Solve for x
    x = 109,873,627.25/9,640.23
  6. Step 6: Final answer
    x = 11,397.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.