Home / 18,786.89-28,182.21-6,943.77

Finding the Fourth Proportional to 18,786.89, 28,182.21 and 6,943.77

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Solution

The fourth proportional to 18,786.89, 28,182.21 and 6,943.77 is: 10,416.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.89 : 28,182.21 = 6,943.77 : x
  2. Step 2: Convert to fraction form
    18,786.89/28,182.21 = 6,943.77/x
  3. Step 3: Cross multiply
    18,786.89x = 28,182.21 × 6,943.77
  4. Step 4: Simplify right side
    18,786.89x = 195,690,784.33
  5. Step 5: Solve for x
    x = 195,690,784.33/18,786.89
  6. Step 6: Final answer
    x = 10,416.35

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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.