Home / 7,974.14-11,007.38-5,990.45

Finding the Fourth Proportional to 7,974.14, 11,007.38 and 5,990.45

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Solution

The fourth proportional to 7,974.14, 11,007.38 and 5,990.45 is: 8,269.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.14 : 11,007.38 = 5,990.45 : x
  2. Step 2: Convert to fraction form
    7,974.14/11,007.38 = 5,990.45/x
  3. Step 3: Cross multiply
    7,974.14x = 11,007.38 × 5,990.45
  4. Step 4: Simplify right side
    7,974.14x = 65,939,129.57
  5. Step 5: Solve for x
    x = 65,939,129.57/7,974.14
  6. Step 6: Final answer
    x = 8,269.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.