Home / 7,824.38-11,736.63-1,981.01

Finding the Fourth Proportional to 7,824.38, 11,736.63 and 1,981.01

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Solution

The fourth proportional to 7,824.38, 11,736.63 and 1,981.01 is: 2,971.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,824.38 : 11,736.63 = 1,981.01 : x
  2. Step 2: Convert to fraction form
    7,824.38/11,736.63 = 1,981.01/x
  3. Step 3: Cross multiply
    7,824.38x = 11,736.63 × 1,981.01
  4. Step 4: Simplify right side
    7,824.38x = 23,250,359.30
  5. Step 5: Solve for x
    x = 23,250,359.30/7,824.38
  6. Step 6: Final answer
    x = 2,971.53

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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.