Home / 7,429.62-11,126.84-6,450.40

Finding the Fourth Proportional to 7,429.62, 11,126.84 and 6,450.40

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Solution

The fourth proportional to 7,429.62, 11,126.84 and 6,450.40 is: 9,660.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.62 : 11,126.84 = 6,450.40 : x
  2. Step 2: Convert to fraction form
    7,429.62/11,126.84 = 6,450.40/x
  3. Step 3: Cross multiply
    7,429.62x = 11,126.84 × 6,450.40
  4. Step 4: Simplify right side
    7,429.62x = 71,772,568.74
  5. Step 5: Solve for x
    x = 71,772,568.74/7,429.62
  6. Step 6: Final answer
    x = 9,660.33

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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.