Home / 11,985.36-16,512.72-8,836.08

Finding the Fourth Proportional to 11,985.36, 16,512.72 and 8,836.08

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Solution

The fourth proportional to 11,985.36, 16,512.72 and 8,836.08 is: 12,173.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985.36 : 16,512.72 = 8,836.08 : x
  2. Step 2: Convert to fraction form
    11,985.36/16,512.72 = 8,836.08/x
  3. Step 3: Cross multiply
    11,985.36x = 16,512.72 × 8,836.08
  4. Step 4: Simplify right side
    11,985.36x = 145,907,714.94
  5. Step 5: Solve for x
    x = 145,907,714.94/11,985.36
  6. Step 6: Final answer
    x = 12,173.83

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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.