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Finding the Fourth Proportional to 13,182.98, 19,757.06 and 7,900.97

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Solution

The fourth proportional to 13,182.98, 19,757.06 and 7,900.97 is: 11,841.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182.98 : 19,757.06 = 7,900.97 : x
  2. Step 2: Convert to fraction form
    13,182.98/19,757.06 = 7,900.97/x
  3. Step 3: Cross multiply
    13,182.98x = 19,757.06 × 7,900.97
  4. Step 4: Simplify right side
    13,182.98x = 156,099,898.84
  5. Step 5: Solve for x
    x = 156,099,898.84/13,182.98
  6. Step 6: Final answer
    x = 11,841.02

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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.