Home / 8,469.12-11,686.80-4,691.93

Finding the Fourth Proportional to 8,469.12, 11,686.80 and 4,691.93

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Solution

The fourth proportional to 8,469.12, 11,686.80 and 4,691.93 is: 6,474.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.12 : 11,686.80 = 4,691.93 : x
  2. Step 2: Convert to fraction form
    8,469.12/11,686.80 = 4,691.93/x
  3. Step 3: Cross multiply
    8,469.12x = 11,686.80 × 4,691.93
  4. Step 4: Simplify right side
    8,469.12x = 54,833,676.74
  5. Step 5: Solve for x
    x = 54,833,676.74/8,469.12
  6. Step 6: Final answer
    x = 6,474.54

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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.