Home / 7,380.42-11,072.66-3,678.18

Finding the Fourth Proportional to 7,380.42, 11,072.66 and 3,678.18

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Solution

The fourth proportional to 7,380.42, 11,072.66 and 3,678.18 is: 5,518.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380.42 : 11,072.66 = 3,678.18 : x
  2. Step 2: Convert to fraction form
    7,380.42/11,072.66 = 3,678.18/x
  3. Step 3: Cross multiply
    7,380.42x = 11,072.66 × 3,678.18
  4. Step 4: Simplify right side
    7,380.42x = 40,727,218.17
  5. Step 5: Solve for x
    x = 40,727,218.17/7,380.42
  6. Step 6: Final answer
    x = 5,518.28

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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.