Home / 7,676.19-11,514.15-2,128.91

Finding the Fourth Proportional to 7,676.19, 11,514.15 and 2,128.91

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Solution

The fourth proportional to 7,676.19, 11,514.15 and 2,128.91 is: 3,193.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,676.19 : 11,514.15 = 2,128.91 : x
  2. Step 2: Convert to fraction form
    7,676.19/11,514.15 = 2,128.91/x
  3. Step 3: Cross multiply
    7,676.19x = 11,514.15 × 2,128.91
  4. Step 4: Simplify right side
    7,676.19x = 24,512,531.51
  5. Step 5: Solve for x
    x = 24,512,531.51/7,676.19
  6. Step 6: Final answer
    x = 3,193.32

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1.5x scale

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.