Home / 10,443.97-15,629.35-7,485.68

Finding the Fourth Proportional to 10,443.97, 15,629.35 and 7,485.68

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Solution

The fourth proportional to 10,443.97, 15,629.35 and 7,485.68 is: 11,202.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,443.97 : 15,629.35 = 7,485.68 : x
  2. Step 2: Convert to fraction form
    10,443.97/15,629.35 = 7,485.68/x
  3. Step 3: Cross multiply
    10,443.97x = 15,629.35 × 7,485.68
  4. Step 4: Simplify right side
    10,443.97x = 116,996,215.85
  5. Step 5: Solve for x
    x = 116,996,215.85/10,443.97
  6. Step 6: Final answer
    x = 11,202.27

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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.