Home / 10,619.54-15,929.67-2,828.36

Finding the Fourth Proportional to 10,619.54, 15,929.67 and 2,828.36

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Solution

The fourth proportional to 10,619.54, 15,929.67 and 2,828.36 is: 4,242.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.54 : 15,929.67 = 2,828.36 : x
  2. Step 2: Convert to fraction form
    10,619.54/15,929.67 = 2,828.36/x
  3. Step 3: Cross multiply
    10,619.54x = 15,929.67 × 2,828.36
  4. Step 4: Simplify right side
    10,619.54x = 45,054,841.44
  5. Step 5: Solve for x
    x = 45,054,841.44/10,619.54
  6. Step 6: Final answer
    x = 4,242.64

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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.