Home / 13,182.66-18,198.45-8,474.94

Finding the Fourth Proportional to 13,182.66, 18,198.45 and 8,474.94

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Solution

The fourth proportional to 13,182.66, 18,198.45 and 8,474.94 is: 11,699.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182.66 : 18,198.45 = 8,474.94 : x
  2. Step 2: Convert to fraction form
    13,182.66/18,198.45 = 8,474.94/x
  3. Step 3: Cross multiply
    13,182.66x = 18,198.45 × 8,474.94
  4. Step 4: Simplify right side
    13,182.66x = 154,230,771.84
  5. Step 5: Solve for x
    x = 154,230,771.84/13,182.66
  6. Step 6: Final answer
    x = 11,699.52

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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.