Home / 7,429.62-11,126.85-6,450.39

Finding the Fourth Proportional to 7,429.62, 11,126.85 and 6,450.39

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Solution

The fourth proportional to 7,429.62, 11,126.85 and 6,450.39 is: 9,660.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.62 : 11,126.85 = 6,450.39 : x
  2. Step 2: Convert to fraction form
    7,429.62/11,126.85 = 6,450.39/x
  3. Step 3: Cross multiply
    7,429.62x = 11,126.85 × 6,450.39
  4. Step 4: Simplify right side
    7,429.62x = 71,772,521.97
  5. Step 5: Solve for x
    x = 71,772,521.97/7,429.62
  6. Step 6: Final answer
    x = 9,660.32

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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.