Home / 6,911.18-10,367.12-1,981.55

Finding the Fourth Proportional to 6,911.18, 10,367.12 and 1,981.55

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Solution

The fourth proportional to 6,911.18, 10,367.12 and 1,981.55 is: 2,972.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,911.18 : 10,367.12 = 1,981.55 : x
  2. Step 2: Convert to fraction form
    6,911.18/10,367.12 = 1,981.55/x
  3. Step 3: Cross multiply
    6,911.18x = 10,367.12 × 1,981.55
  4. Step 4: Simplify right side
    6,911.18x = 20,542,904.89
  5. Step 5: Solve for x
    x = 20,542,904.89/6,911.18
  6. Step 6: Final answer
    x = 2,972.42

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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.