Home / 7,824.42-11,736.23-1,981.08

Finding the Fourth Proportional to 7,824.42, 11,736.23 and 1,981.08

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Solution

The fourth proportional to 7,824.42, 11,736.23 and 1,981.08 is: 2,971.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,824.42 : 11,736.23 = 1,981.08 : x
  2. Step 2: Convert to fraction form
    7,824.42/11,736.23 = 1,981.08/x
  3. Step 3: Cross multiply
    7,824.42x = 11,736.23 × 1,981.08
  4. Step 4: Simplify right side
    7,824.42x = 23,250,400.62
  5. Step 5: Solve for x
    x = 23,250,400.62/7,824.42
  6. Step 6: Final answer
    x = 2,971.52

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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.