Home / 7,126.62-10,689.96-4,202.88

Finding the Fourth Proportional to 7,126.62, 10,689.96 and 4,202.88

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Solution

The fourth proportional to 7,126.62, 10,689.96 and 4,202.88 is: 6,304.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.62 : 10,689.96 = 4,202.88 : x
  2. Step 2: Convert to fraction form
    7,126.62/10,689.96 = 4,202.88/x
  3. Step 3: Cross multiply
    7,126.62x = 10,689.96 × 4,202.88
  4. Step 4: Simplify right side
    7,126.62x = 44,928,544.62
  5. Step 5: Solve for x
    x = 44,928,544.62/7,126.62
  6. Step 6: Final answer
    x = 6,304.33

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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.