Home / 11,320.42-16,976.79-3,923.15

Finding the Fourth Proportional to 11,320.42, 16,976.79 and 3,923.15

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Solution

The fourth proportional to 11,320.42, 16,976.79 and 3,923.15 is: 5,883.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.42 : 16,976.79 = 3,923.15 : x
  2. Step 2: Convert to fraction form
    11,320.42/16,976.79 = 3,923.15/x
  3. Step 3: Cross multiply
    11,320.42x = 16,976.79 × 3,923.15
  4. Step 4: Simplify right side
    11,320.42x = 66,602,474.07
  5. Step 5: Solve for x
    x = 66,602,474.07/11,320.42
  6. Step 6: Final answer
    x = 5,883.39

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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.