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Finding the Fourth Proportional to 12,752.88, 19,125.86 and 8,065.85

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Solution

The fourth proportional to 12,752.88, 19,125.86 and 8,065.85 is: 12,096.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,752.88 : 19,125.86 = 8,065.85 : x
  2. Step 2: Convert to fraction form
    12,752.88/19,125.86 = 8,065.85/x
  3. Step 3: Cross multiply
    12,752.88x = 19,125.86 × 8,065.85
  4. Step 4: Simplify right side
    12,752.88x = 154,266,181.92
  5. Step 5: Solve for x
    x = 154,266,181.92/12,752.88
  6. Step 6: Final answer
    x = 12,096.58

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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.