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Finding the Fourth Proportional to 9,984.31, 13,778.43 and 5,508.22

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Solution

The fourth proportional to 9,984.31, 13,778.43 and 5,508.22 is: 7,601.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,984.31 : 13,778.43 = 5,508.22 : x
  2. Step 2: Convert to fraction form
    9,984.31/13,778.43 = 5,508.22/x
  3. Step 3: Cross multiply
    9,984.31x = 13,778.43 × 5,508.22
  4. Step 4: Simplify right side
    9,984.31x = 75,894,554.80
  5. Step 5: Solve for x
    x = 75,894,554.80/9,984.31
  6. Step 6: Final answer
    x = 7,601.38

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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.