Home / 11,679.96-16,118.34-6,644.16

Finding the Fourth Proportional to 11,679.96, 16,118.34 and 6,644.16

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Solution

The fourth proportional to 11,679.96, 16,118.34 and 6,644.16 is: 9,168.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,679.96 : 16,118.34 = 6,644.16 : x
  2. Step 2: Convert to fraction form
    11,679.96/16,118.34 = 6,644.16/x
  3. Step 3: Cross multiply
    11,679.96x = 16,118.34 × 6,644.16
  4. Step 4: Simplify right side
    11,679.96x = 107,092,829.89
  5. Step 5: Solve for x
    x = 107,092,829.89/11,679.96
  6. Step 6: Final answer
    x = 9,168.94

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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.