Home / 7,981.56-11,973.96-4,084.92

Finding the Fourth Proportional to 7,981.56, 11,973.96 and 4,084.92

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Solution

The fourth proportional to 7,981.56, 11,973.96 and 4,084.92 is: 6,128.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.56 : 11,973.96 = 4,084.92 : x
  2. Step 2: Convert to fraction form
    7,981.56/11,973.96 = 4,084.92/x
  3. Step 3: Cross multiply
    7,981.56x = 11,973.96 × 4,084.92
  4. Step 4: Simplify right side
    7,981.56x = 48,912,668.68
  5. Step 5: Solve for x
    x = 48,912,668.68/7,981.56
  6. Step 6: Final answer
    x = 6,128.21

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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.