Home / 18,758.44-28,108.50-7,065.28

Finding the Fourth Proportional to 18,758.44, 28,108.50 and 7,065.28

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Solution

The fourth proportional to 18,758.44, 28,108.50 and 7,065.28 is: 10,586.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,758.44 : 28,108.50 = 7,065.28 : x
  2. Step 2: Convert to fraction form
    18,758.44/28,108.50 = 7,065.28/x
  3. Step 3: Cross multiply
    18,758.44x = 28,108.50 × 7,065.28
  4. Step 4: Simplify right side
    18,758.44x = 198,594,422.88
  5. Step 5: Solve for x
    x = 198,594,422.88/18,758.44
  6. Step 6: Final answer
    x = 10,586.94

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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.