Home / 13,276.80-19,917.93-11,100.74

Finding the Fourth Proportional to 13,276.80, 19,917.93 and 11,100.74

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Solution

The fourth proportional to 13,276.80, 19,917.93 and 11,100.74 is: 16,653.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.80 : 19,917.93 = 11,100.74 : x
  2. Step 2: Convert to fraction form
    13,276.80/19,917.93 = 11,100.74/x
  3. Step 3: Cross multiply
    13,276.80x = 19,917.93 × 11,100.74
  4. Step 4: Simplify right side
    13,276.80x = 221,103,662.68
  5. Step 5: Solve for x
    x = 221,103,662.68/13,276.80
  6. Step 6: Final answer
    x = 16,653.39

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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.