Home / 13,879.27-19,281.77-13,749.56

Finding the Fourth Proportional to 13,879.27, 19,281.77 and 13,749.56

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Solution

The fourth proportional to 13,879.27, 19,281.77 and 13,749.56 is: 19,101.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879.27 : 19,281.77 = 13,749.56 : x
  2. Step 2: Convert to fraction form
    13,879.27/19,281.77 = 13,749.56/x
  3. Step 3: Cross multiply
    13,879.27x = 19,281.77 × 13,749.56
  4. Step 4: Simplify right side
    13,879.27x = 265,115,853.52
  5. Step 5: Solve for x
    x = 265,115,853.52/13,879.27
  6. Step 6: Final answer
    x = 19,101.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.