Home / 12,361.35-18,548.10-5,786.40

Finding the Fourth Proportional to 12,361.35, 18,548.10 and 5,786.40

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Solution

The fourth proportional to 12,361.35, 18,548.10 and 5,786.40 is: 8,682.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,361.35 : 18,548.10 = 5,786.40 : x
  2. Step 2: Convert to fraction form
    12,361.35/18,548.10 = 5,786.40/x
  3. Step 3: Cross multiply
    12,361.35x = 18,548.10 × 5,786.40
  4. Step 4: Simplify right side
    12,361.35x = 107,326,725.84
  5. Step 5: Solve for x
    x = 107,326,725.84/12,361.35
  6. Step 6: Final answer
    x = 8,682.44

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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.