Home / 19,145.96-26,428.58-11,190.75

Finding the Fourth Proportional to 19,145.96, 26,428.58 and 11,190.75

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Solution

The fourth proportional to 19,145.96, 26,428.58 and 11,190.75 is: 15,447.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,145.96 : 26,428.58 = 11,190.75 : x
  2. Step 2: Convert to fraction form
    19,145.96/26,428.58 = 11,190.75/x
  3. Step 3: Cross multiply
    19,145.96x = 26,428.58 × 11,190.75
  4. Step 4: Simplify right side
    19,145.96x = 295,755,631.64
  5. Step 5: Solve for x
    x = 295,755,631.64/19,145.96
  6. Step 6: Final answer
    x = 15,447.42

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Double scale
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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.