Home / 7,429.73-11,140.79-3,921.62

Finding the Fourth Proportional to 7,429.73, 11,140.79 and 3,921.62

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Solution

The fourth proportional to 7,429.73, 11,140.79 and 3,921.62 is: 5,880.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.73 : 11,140.79 = 3,921.62 : x
  2. Step 2: Convert to fraction form
    7,429.73/11,140.79 = 3,921.62/x
  3. Step 3: Cross multiply
    7,429.73x = 11,140.79 × 3,921.62
  4. Step 4: Simplify right side
    7,429.73x = 43,689,869.57
  5. Step 5: Solve for x
    x = 43,689,869.57/7,429.73
  6. Step 6: Final answer
    x = 5,880.42

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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.