Home / 19,451.57-26,845.75-11,387.69

Finding the Fourth Proportional to 19,451.57, 26,845.75 and 11,387.69

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Solution

The fourth proportional to 19,451.57, 26,845.75 and 11,387.69 is: 15,716.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,451.57 : 26,845.75 = 11,387.69 : x
  2. Step 2: Convert to fraction form
    19,451.57/26,845.75 = 11,387.69/x
  3. Step 3: Cross multiply
    19,451.57x = 26,845.75 × 11,387.69
  4. Step 4: Simplify right side
    19,451.57x = 305,711,091.52
  5. Step 5: Solve for x
    x = 305,711,091.52/19,451.57
  6. Step 6: Final answer
    x = 15,716.53

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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.