Home / 15,866.73-21,885.83-12,504.33

Finding the Fourth Proportional to 15,866.73, 21,885.83 and 12,504.33

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Solution

The fourth proportional to 15,866.73, 21,885.83 and 12,504.33 is: 17,247.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,866.73 : 21,885.83 = 12,504.33 : x
  2. Step 2: Convert to fraction form
    15,866.73/21,885.83 = 12,504.33/x
  3. Step 3: Cross multiply
    15,866.73x = 21,885.83 × 12,504.33
  4. Step 4: Simplify right side
    15,866.73x = 273,667,578.12
  5. Step 5: Solve for x
    x = 273,667,578.12/15,866.73
  6. Step 6: Final answer
    x = 17,247.89

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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.