Home / 7,674.21-11,443.53-6,740.97

Finding the Fourth Proportional to 7,674.21, 11,443.53 and 6,740.97

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Solution

The fourth proportional to 7,674.21, 11,443.53 and 6,740.97 is: 10,051.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,674.21 : 11,443.53 = 6,740.97 : x
  2. Step 2: Convert to fraction form
    7,674.21/11,443.53 = 6,740.97/x
  3. Step 3: Cross multiply
    7,674.21x = 11,443.53 × 6,740.97
  4. Step 4: Simplify right side
    7,674.21x = 77,140,474.79
  5. Step 5: Solve for x
    x = 77,140,474.79/7,674.21
  6. Step 6: Final answer
    x = 10,051.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.