Home / 12,474.63-18,709.97-4,160.43

Finding the Fourth Proportional to 12,474.63, 18,709.97 and 4,160.43

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Solution

The fourth proportional to 12,474.63, 18,709.97 and 4,160.43 is: 6,239.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.63 : 18,709.97 = 4,160.43 : x
  2. Step 2: Convert to fraction form
    12,474.63/18,709.97 = 4,160.43/x
  3. Step 3: Cross multiply
    12,474.63x = 18,709.97 × 4,160.43
  4. Step 4: Simplify right side
    12,474.63x = 77,841,499.68
  5. Step 5: Solve for x
    x = 77,841,499.68/12,474.63
  6. Step 6: Final answer
    x = 6,239.98

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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.