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Finding the Fourth Proportional to 9,968.41, 13,750.91 and 6,988.69

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Solution

The fourth proportional to 9,968.41, 13,750.91 and 6,988.69 is: 9,640.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,968.41 : 13,750.91 = 6,988.69 : x
  2. Step 2: Convert to fraction form
    9,968.41/13,750.91 = 6,988.69/x
  3. Step 3: Cross multiply
    9,968.41x = 13,750.91 × 6,988.69
  4. Step 4: Simplify right side
    9,968.41x = 96,100,778.45
  5. Step 5: Solve for x
    x = 96,100,778.45/9,968.41
  6. Step 6: Final answer
    x = 9,640.54

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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.