Home / 19,385.76-26,745.44-12,675.28

Finding the Fourth Proportional to 19,385.76, 26,745.44 and 12,675.28

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Solution

The fourth proportional to 19,385.76, 26,745.44 and 12,675.28 is: 17,487.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,385.76 : 26,745.44 = 12,675.28 : x
  2. Step 2: Convert to fraction form
    19,385.76/26,745.44 = 12,675.28/x
  3. Step 3: Cross multiply
    19,385.76x = 26,745.44 × 12,675.28
  4. Step 4: Simplify right side
    19,385.76x = 339,005,940.72
  5. Step 5: Solve for x
    x = 339,005,940.72/19,385.76
  6. Step 6: Final answer
    x = 17,487.37

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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.