Home / 12,584.64-18,881.55-6,661.85

Finding the Fourth Proportional to 12,584.64, 18,881.55 and 6,661.85

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Solution

The fourth proportional to 12,584.64, 18,881.55 and 6,661.85 is: 9,995.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,584.64 : 18,881.55 = 6,661.85 : x
  2. Step 2: Convert to fraction form
    12,584.64/18,881.55 = 6,661.85/x
  3. Step 3: Cross multiply
    12,584.64x = 18,881.55 × 6,661.85
  4. Step 4: Simplify right side
    12,584.64x = 125,786,101.07
  5. Step 5: Solve for x
    x = 125,786,101.07/12,584.64
  6. Step 6: Final answer
    x = 9,995.21

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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.