Home / 12,777.53-19,146.36-8,087.63

Finding the Fourth Proportional to 12,777.53, 19,146.36 and 8,087.63

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Solution

The fourth proportional to 12,777.53, 19,146.36 and 8,087.63 is: 12,118.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,777.53 : 19,146.36 = 8,087.63 : x
  2. Step 2: Convert to fraction form
    12,777.53/19,146.36 = 8,087.63/x
  3. Step 3: Cross multiply
    12,777.53x = 19,146.36 × 8,087.63
  4. Step 4: Simplify right side
    12,777.53x = 154,848,699.87
  5. Step 5: Solve for x
    x = 154,848,699.87/12,777.53
  6. Step 6: Final answer
    x = 12,118.83

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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.