Home / 12,726.38-18,986.23-12,037.47

Finding the Fourth Proportional to 12,726.38, 18,986.23 and 12,037.47

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Solution

The fourth proportional to 12,726.38, 18,986.23 and 12,037.47 is: 17,958.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,726.38 : 18,986.23 = 12,037.47 : x
  2. Step 2: Convert to fraction form
    12,726.38/18,986.23 = 12,037.47/x
  3. Step 3: Cross multiply
    12,726.38x = 18,986.23 × 12,037.47
  4. Step 4: Simplify right side
    12,726.38x = 228,546,143.94
  5. Step 5: Solve for x
    x = 228,546,143.94/12,726.38
  6. Step 6: Final answer
    x = 17,958.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.