Home / 19,005.44-26,190.96-13,406.72

Finding the Fourth Proportional to 19,005.44, 26,190.96 and 13,406.72

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Solution

The fourth proportional to 19,005.44, 26,190.96 and 13,406.72 is: 18,475.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.44 : 26,190.96 = 13,406.72 : x
  2. Step 2: Convert to fraction form
    19,005.44/26,190.96 = 13,406.72/x
  3. Step 3: Cross multiply
    19,005.44x = 26,190.96 × 13,406.72
  4. Step 4: Simplify right side
    19,005.44x = 351,134,867.25
  5. Step 5: Solve for x
    x = 351,134,867.25/19,005.44
  6. Step 6: Final answer
    x = 18,475.49

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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.