Home / 12,100.49-18,134.79-11,311.35

Finding the Fourth Proportional to 12,100.49, 18,134.79 and 11,311.35

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Solution

The fourth proportional to 12,100.49, 18,134.79 and 11,311.35 is: 16,952.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100.49 : 18,134.79 = 11,311.35 : x
  2. Step 2: Convert to fraction form
    12,100.49/18,134.79 = 11,311.35/x
  3. Step 3: Cross multiply
    12,100.49x = 18,134.79 × 11,311.35
  4. Step 4: Simplify right side
    12,100.49x = 205,128,846.44
  5. Step 5: Solve for x
    x = 205,128,846.44/12,100.49
  6. Step 6: Final answer
    x = 16,952.11

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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.