Home / 8,189.18-11,305.35-5,514.45

Finding the Fourth Proportional to 8,189.18, 11,305.35 and 5,514.45

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Solution

The fourth proportional to 8,189.18, 11,305.35 and 5,514.45 is: 7,612.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.18 : 11,305.35 = 5,514.45 : x
  2. Step 2: Convert to fraction form
    8,189.18/11,305.35 = 5,514.45/x
  3. Step 3: Cross multiply
    8,189.18x = 11,305.35 × 5,514.45
  4. Step 4: Simplify right side
    8,189.18x = 62,342,787.31
  5. Step 5: Solve for x
    x = 62,342,787.31/8,189.18
  6. Step 6: Final answer
    x = 7,612.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.