Home / 18,934.02-28,406.14-5,786.03

Finding the Fourth Proportional to 18,934.02, 28,406.14 and 5,786.03

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Solution

The fourth proportional to 18,934.02, 28,406.14 and 5,786.03 is: 8,680.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.02 : 28,406.14 = 5,786.03 : x
  2. Step 2: Convert to fraction form
    18,934.02/28,406.14 = 5,786.03/x
  3. Step 3: Cross multiply
    18,934.02x = 28,406.14 × 5,786.03
  4. Step 4: Simplify right side
    18,934.02x = 164,358,749.29
  5. Step 5: Solve for x
    x = 164,358,749.29/18,934.02
  6. Step 6: Final answer
    x = 8,680.61

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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.