Home / 7,816.87-11,728.02-3,433.72

Finding the Fourth Proportional to 7,816.87, 11,728.02 and 3,433.72

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Solution

The fourth proportional to 7,816.87, 11,728.02 and 3,433.72 is: 5,151.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.87 : 11,728.02 = 3,433.72 : x
  2. Step 2: Convert to fraction form
    7,816.87/11,728.02 = 3,433.72/x
  3. Step 3: Cross multiply
    7,816.87x = 11,728.02 × 3,433.72
  4. Step 4: Simplify right side
    7,816.87x = 40,270,736.83
  5. Step 5: Solve for x
    x = 40,270,736.83/7,816.87
  6. Step 6: Final answer
    x = 5,151.77

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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.