Home / 7,740.14-10,679.62-5,226.92

Finding the Fourth Proportional to 7,740.14, 10,679.62 and 5,226.92

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Solution

The fourth proportional to 7,740.14, 10,679.62 and 5,226.92 is: 7,211.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.14 : 10,679.62 = 5,226.92 : x
  2. Step 2: Convert to fraction form
    7,740.14/10,679.62 = 5,226.92/x
  3. Step 3: Cross multiply
    7,740.14x = 10,679.62 × 5,226.92
  4. Step 4: Simplify right side
    7,740.14x = 55,821,519.37
  5. Step 5: Solve for x
    x = 55,821,519.37/7,740.14
  6. Step 6: Final answer
    x = 7,211.95

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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.