Home / 11,986.70-17,985.62-4,588.72

Finding the Fourth Proportional to 11,986.70, 17,985.62 and 4,588.72

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Solution

The fourth proportional to 11,986.70, 17,985.62 and 4,588.72 is: 6,885.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.70 : 17,985.62 = 4,588.72 : x
  2. Step 2: Convert to fraction form
    11,986.70/17,985.62 = 4,588.72/x
  3. Step 3: Cross multiply
    11,986.70x = 17,985.62 × 4,588.72
  4. Step 4: Simplify right side
    11,986.70x = 82,530,974.21
  5. Step 5: Solve for x
    x = 82,530,974.21/11,986.70
  6. Step 6: Final answer
    x = 6,885.21

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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.