Home / 13,879.72-19,153.80-8,500.36

Finding the Fourth Proportional to 13,879.72, 19,153.80 and 8,500.36

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Solution

The fourth proportional to 13,879.72, 19,153.80 and 8,500.36 is: 11,730.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879.72 : 19,153.80 = 8,500.36 : x
  2. Step 2: Convert to fraction form
    13,879.72/19,153.80 = 8,500.36/x
  3. Step 3: Cross multiply
    13,879.72x = 19,153.80 × 8,500.36
  4. Step 4: Simplify right side
    13,879.72x = 162,814,195.37
  5. Step 5: Solve for x
    x = 162,814,195.37/13,879.72
  6. Step 6: Final answer
    x = 11,730.37

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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.