Home / 18,786.52-28,185.72-8,934.22

Finding the Fourth Proportional to 18,786.52, 28,185.72 and 8,934.22

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Solution

The fourth proportional to 18,786.52, 28,185.72 and 8,934.22 is: 13,404.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.52 : 28,185.72 = 8,934.22 : x
  2. Step 2: Convert to fraction form
    18,786.52/28,185.72 = 8,934.22/x
  3. Step 3: Cross multiply
    18,786.52x = 28,185.72 × 8,934.22
  4. Step 4: Simplify right side
    18,786.52x = 251,817,423.34
  5. Step 5: Solve for x
    x = 251,817,423.34/18,786.52
  6. Step 6: Final answer
    x = 13,404.15

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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.