Home / 12,165.36-16,770.96-8,627.28

Finding the Fourth Proportional to 12,165.36, 16,770.96 and 8,627.28

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Solution

The fourth proportional to 12,165.36, 16,770.96 and 8,627.28 is: 11,893.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165.36 : 16,770.96 = 8,627.28 : x
  2. Step 2: Convert to fraction form
    12,165.36/16,770.96 = 8,627.28/x
  3. Step 3: Cross multiply
    12,165.36x = 16,770.96 × 8,627.28
  4. Step 4: Simplify right side
    12,165.36x = 144,687,767.79
  5. Step 5: Solve for x
    x = 144,687,767.79/12,165.36
  6. Step 6: Final answer
    x = 11,893.42

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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.