Home / 18,670.14-28,010.67-5,522.85

Finding the Fourth Proportional to 18,670.14, 28,010.67 and 5,522.85

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Solution

The fourth proportional to 18,670.14, 28,010.67 and 5,522.85 is: 8,285.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.14 : 28,010.67 = 5,522.85 : x
  2. Step 2: Convert to fraction form
    18,670.14/28,010.67 = 5,522.85/x
  3. Step 3: Cross multiply
    18,670.14x = 28,010.67 × 5,522.85
  4. Step 4: Simplify right side
    18,670.14x = 154,698,728.81
  5. Step 5: Solve for x
    x = 154,698,728.81/18,670.14
  6. Step 6: Final answer
    x = 8,285.89

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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.