Home / 10,556.40-15,835.60-2,765.28

Finding the Fourth Proportional to 10,556.40, 15,835.60 and 2,765.28

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Solution

The fourth proportional to 10,556.40, 15,835.60 and 2,765.28 is: 4,148.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,556.40 : 15,835.60 = 2,765.28 : x
  2. Step 2: Convert to fraction form
    10,556.40/15,835.60 = 2,765.28/x
  3. Step 3: Cross multiply
    10,556.40x = 15,835.60 × 2,765.28
  4. Step 4: Simplify right side
    10,556.40x = 43,789,867.97
  5. Step 5: Solve for x
    x = 43,789,867.97/10,556.40
  6. Step 6: Final answer
    x = 4,148.18

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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.