Home / 13,845.76-19,108.26-7,879.24

Finding the Fourth Proportional to 13,845.76, 19,108.26 and 7,879.24

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Solution

The fourth proportional to 13,845.76, 19,108.26 and 7,879.24 is: 10,873.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.76 : 19,108.26 = 7,879.24 : x
  2. Step 2: Convert to fraction form
    13,845.76/19,108.26 = 7,879.24/x
  3. Step 3: Cross multiply
    13,845.76x = 19,108.26 × 7,879.24
  4. Step 4: Simplify right side
    13,845.76x = 150,558,566.52
  5. Step 5: Solve for x
    x = 150,558,566.52/13,845.76
  6. Step 6: Final answer
    x = 10,873.98

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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.