Home / 13,785.59-19,013.92-8,745.47

Finding the Fourth Proportional to 13,785.59, 19,013.92 and 8,745.47

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Solution

The fourth proportional to 13,785.59, 19,013.92 and 8,745.47 is: 12,062.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.59 : 19,013.92 = 8,745.47 : x
  2. Step 2: Convert to fraction form
    13,785.59/19,013.92 = 8,745.47/x
  3. Step 3: Cross multiply
    13,785.59x = 19,013.92 × 8,745.47
  4. Step 4: Simplify right side
    13,785.59x = 166,285,571.87
  5. Step 5: Solve for x
    x = 166,285,571.87/13,785.59
  6. Step 6: Final answer
    x = 12,062.28

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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.