Home / 19,163.89-26,449.84-10,780.39

Finding the Fourth Proportional to 19,163.89, 26,449.84 and 10,780.39

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Solution

The fourth proportional to 19,163.89, 26,449.84 and 10,780.39 is: 14,879.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,163.89 : 26,449.84 = 10,780.39 : x
  2. Step 2: Convert to fraction form
    19,163.89/26,449.84 = 10,780.39/x
  3. Step 3: Cross multiply
    19,163.89x = 26,449.84 × 10,780.39
  4. Step 4: Simplify right side
    19,163.89x = 285,139,590.64
  5. Step 5: Solve for x
    x = 285,139,590.64/19,163.89
  6. Step 6: Final answer
    x = 14,879.00

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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.