Home / 18,670.12-28,010.46-5,522.44

Finding the Fourth Proportional to 18,670.12, 28,010.46 and 5,522.44

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Solution

The fourth proportional to 18,670.12, 28,010.46 and 5,522.44 is: 8,285.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.12 : 28,010.46 = 5,522.44 : x
  2. Step 2: Convert to fraction form
    18,670.12/28,010.46 = 5,522.44/x
  3. Step 3: Cross multiply
    18,670.12x = 28,010.46 × 5,522.44
  4. Step 4: Simplify right side
    18,670.12x = 154,686,084.72
  5. Step 5: Solve for x
    x = 154,686,084.72/18,670.12
  6. Step 6: Final answer
    x = 8,285.22

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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.