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Finding the Fourth Proportional to 9,820.14, 14,710.14 and 8,171.38

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Solution

The fourth proportional to 9,820.14, 14,710.14 and 8,171.38 is: 12,240.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,820.14 : 14,710.14 = 8,171.38 : x
  2. Step 2: Convert to fraction form
    9,820.14/14,710.14 = 8,171.38/x
  3. Step 3: Cross multiply
    9,820.14x = 14,710.14 × 8,171.38
  4. Step 4: Simplify right side
    9,820.14x = 120,202,143.79
  5. Step 5: Solve for x
    x = 120,202,143.79/9,820.14
  6. Step 6: Final answer
    x = 12,240.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.