Home / 10,678.78-16,020.06-4,435.30

Finding the Fourth Proportional to 10,678.78, 16,020.06 and 4,435.30

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Solution

The fourth proportional to 10,678.78, 16,020.06 and 4,435.30 is: 6,653.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,678.78 : 16,020.06 = 4,435.30 : x
  2. Step 2: Convert to fraction form
    10,678.78/16,020.06 = 4,435.30/x
  3. Step 3: Cross multiply
    10,678.78x = 16,020.06 × 4,435.30
  4. Step 4: Simplify right side
    10,678.78x = 71,053,772.12
  5. Step 5: Solve for x
    x = 71,053,772.12/10,678.78
  6. Step 6: Final answer
    x = 6,653.73

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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.