Home / 6,912.91-10,367.53-1,981.23

Finding the Fourth Proportional to 6,912.91, 10,367.53 and 1,981.23

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Solution

The fourth proportional to 6,912.91, 10,367.53 and 1,981.23 is: 2,971.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.91 : 10,367.53 = 1,981.23 : x
  2. Step 2: Convert to fraction form
    6,912.91/10,367.53 = 1,981.23/x
  3. Step 3: Cross multiply
    6,912.91x = 10,367.53 × 1,981.23
  4. Step 4: Simplify right side
    6,912.91x = 20,540,461.46
  5. Step 5: Solve for x
    x = 20,540,461.46/6,912.91
  6. Step 6: Final answer
    x = 2,971.32

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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.