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Finding the Fourth Proportional to 9,986.03, 13,778.27 and 6,104.45

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Solution

The fourth proportional to 9,986.03, 13,778.27 and 6,104.45 is: 8,422.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986.03 : 13,778.27 = 6,104.45 : x
  2. Step 2: Convert to fraction form
    9,986.03/13,778.27 = 6,104.45/x
  3. Step 3: Cross multiply
    9,986.03x = 13,778.27 × 6,104.45
  4. Step 4: Simplify right side
    9,986.03x = 84,108,729.78
  5. Step 5: Solve for x
    x = 84,108,729.78/9,986.03
  6. Step 6: Final answer
    x = 8,422.64

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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.