Home / 8,687.12-11,986.65-4,858.83

Finding the Fourth Proportional to 8,687.12, 11,986.65 and 4,858.83

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Solution

The fourth proportional to 8,687.12, 11,986.65 and 4,858.83 is: 6,704.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.12 : 11,986.65 = 4,858.83 : x
  2. Step 2: Convert to fraction form
    8,687.12/11,986.65 = 4,858.83/x
  3. Step 3: Cross multiply
    8,687.12x = 11,986.65 × 4,858.83
  4. Step 4: Simplify right side
    8,687.12x = 58,241,094.62
  5. Step 5: Solve for x
    x = 58,241,094.62/8,687.12
  6. Step 6: Final answer
    x = 6,704.31

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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.