Home / 12,568.80-18,857.58-7,883.27

Finding the Fourth Proportional to 12,568.80, 18,857.58 and 7,883.27

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Solution

The fourth proportional to 12,568.80, 18,857.58 and 7,883.27 is: 11,827.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,568.80 : 18,857.58 = 7,883.27 : x
  2. Step 2: Convert to fraction form
    12,568.80/18,857.58 = 7,883.27/x
  3. Step 3: Cross multiply
    12,568.80x = 18,857.58 × 7,883.27
  4. Step 4: Simplify right side
    12,568.80x = 148,659,300.40
  5. Step 5: Solve for x
    x = 148,659,300.40/12,568.80
  6. Step 6: Final answer
    x = 11,827.64

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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.