Home / 19,128.98-26,399.66-11,173.77

Finding the Fourth Proportional to 19,128.98, 26,399.66 and 11,173.77

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Solution

The fourth proportional to 19,128.98, 26,399.66 and 11,173.77 is: 15,420.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128.98 : 26,399.66 = 11,173.77 : x
  2. Step 2: Convert to fraction form
    19,128.98/26,399.66 = 11,173.77/x
  3. Step 3: Cross multiply
    19,128.98x = 26,399.66 × 11,173.77
  4. Step 4: Simplify right side
    19,128.98x = 294,983,673.05
  5. Step 5: Solve for x
    x = 294,983,673.05/19,128.98
  6. Step 6: Final answer
    x = 15,420.77

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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.