Home / 12,133.82-16,746.81-11,579.78

Finding the Fourth Proportional to 12,133.82, 16,746.81 and 11,579.78

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Solution

The fourth proportional to 12,133.82, 16,746.81 and 11,579.78 is: 15,982.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,133.82 : 16,746.81 = 11,579.78 : x
  2. Step 2: Convert to fraction form
    12,133.82/16,746.81 = 11,579.78/x
  3. Step 3: Cross multiply
    12,133.82x = 16,746.81 × 11,579.78
  4. Step 4: Simplify right side
    12,133.82x = 193,924,375.50
  5. Step 5: Solve for x
    x = 193,924,375.50/12,133.82
  6. Step 6: Final answer
    x = 15,982.14

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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.