Home / 8,376.72-11,556.56-4,839.28

Finding the Fourth Proportional to 8,376.72, 11,556.56 and 4,839.28

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Solution

The fourth proportional to 8,376.72, 11,556.56 and 4,839.28 is: 6,676.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,376.72 : 11,556.56 = 4,839.28 : x
  2. Step 2: Convert to fraction form
    8,376.72/11,556.56 = 4,839.28/x
  3. Step 3: Cross multiply
    8,376.72x = 11,556.56 × 4,839.28
  4. Step 4: Simplify right side
    8,376.72x = 55,925,429.68
  5. Step 5: Solve for x
    x = 55,925,429.68/8,376.72
  6. Step 6: Final answer
    x = 6,676.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.