Home / 13,234.39-19,879.26-11,158.45

Finding the Fourth Proportional to 13,234.39, 19,879.26 and 11,158.45

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Solution

The fourth proportional to 13,234.39, 19,879.26 and 11,158.45 is: 16,761.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,234.39 : 19,879.26 = 11,158.45 : x
  2. Step 2: Convert to fraction form
    13,234.39/19,879.26 = 11,158.45/x
  3. Step 3: Cross multiply
    13,234.39x = 19,879.26 × 11,158.45
  4. Step 4: Simplify right side
    13,234.39x = 221,821,656.32
  5. Step 5: Solve for x
    x = 221,821,656.32/13,234.39
  6. Step 6: Final answer
    x = 16,761.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.