Home / 13,912.93-19,196.40-8,249.01

Finding the Fourth Proportional to 13,912.93, 19,196.40 and 8,249.01

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Solution

The fourth proportional to 13,912.93, 19,196.40 and 8,249.01 is: 11,381.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.93 : 19,196.40 = 8,249.01 : x
  2. Step 2: Convert to fraction form
    13,912.93/19,196.40 = 8,249.01/x
  3. Step 3: Cross multiply
    13,912.93x = 19,196.40 × 8,249.01
  4. Step 4: Simplify right side
    13,912.93x = 158,351,158.34
  5. Step 5: Solve for x
    x = 158,351,158.34/13,912.93
  6. Step 6: Final answer
    x = 11,381.58

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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.