Home / 7,012.16-9,679.20-4,361.84

Finding the Fourth Proportional to 7,012.16, 9,679.20 and 4,361.84

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Solution

The fourth proportional to 7,012.16, 9,679.20 and 4,361.84 is: 6,020.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,012.16 : 9,679.20 = 4,361.84 : x
  2. Step 2: Convert to fraction form
    7,012.16/9,679.20 = 4,361.84/x
  3. Step 3: Cross multiply
    7,012.16x = 9,679.20 × 4,361.84
  4. Step 4: Simplify right side
    7,012.16x = 42,219,121.73
  5. Step 5: Solve for x
    x = 42,219,121.73/7,012.16
  6. Step 6: Final answer
    x = 6,020.84

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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.