Home / 10,621.74-15,929.36-2,829.54

Finding the Fourth Proportional to 10,621.74, 15,929.36 and 2,829.54

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Solution

The fourth proportional to 10,621.74, 15,929.36 and 2,829.54 is: 4,243.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.74 : 15,929.36 = 2,829.54 : x
  2. Step 2: Convert to fraction form
    10,621.74/15,929.36 = 2,829.54/x
  3. Step 3: Cross multiply
    10,621.74x = 15,929.36 × 2,829.54
  4. Step 4: Simplify right side
    10,621.74x = 45,072,761.29
  5. Step 5: Solve for x
    x = 45,072,761.29/10,621.74
  6. Step 6: Final answer
    x = 4,243.44

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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.