Home / 7,629.40-11,425.38-5,283.28

Finding the Fourth Proportional to 7,629.40, 11,425.38 and 5,283.28

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Solution

The fourth proportional to 7,629.40, 11,425.38 and 5,283.28 is: 7,911.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.40 : 11,425.38 = 5,283.28 : x
  2. Step 2: Convert to fraction form
    7,629.40/11,425.38 = 5,283.28/x
  3. Step 3: Cross multiply
    7,629.40x = 11,425.38 × 5,283.28
  4. Step 4: Simplify right side
    7,629.40x = 60,363,481.65
  5. Step 5: Solve for x
    x = 60,363,481.65/7,629.40
  6. Step 6: Final answer
    x = 7,911.96

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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.