Home / 10,676.43-16,010.19-5,128.47

Finding the Fourth Proportional to 10,676.43, 16,010.19 and 5,128.47

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Solution

The fourth proportional to 10,676.43, 16,010.19 and 5,128.47 is: 7,690.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,676.43 : 16,010.19 = 5,128.47 : x
  2. Step 2: Convert to fraction form
    10,676.43/16,010.19 = 5,128.47/x
  3. Step 3: Cross multiply
    10,676.43x = 16,010.19 × 5,128.47
  4. Step 4: Simplify right side
    10,676.43x = 82,107,779.11
  5. Step 5: Solve for x
    x = 82,107,779.11/10,676.43
  6. Step 6: Final answer
    x = 7,690.57

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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.