Home / 13,910.28-20,866.71-4,550.36

Finding the Fourth Proportional to 13,910.28, 20,866.71 and 4,550.36

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Solution

The fourth proportional to 13,910.28, 20,866.71 and 4,550.36 is: 6,825.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.28 : 20,866.71 = 4,550.36 : x
  2. Step 2: Convert to fraction form
    13,910.28/20,866.71 = 4,550.36/x
  3. Step 3: Cross multiply
    13,910.28x = 20,866.71 × 4,550.36
  4. Step 4: Simplify right side
    13,910.28x = 94,950,929.65
  5. Step 5: Solve for x
    x = 94,950,929.65/13,910.28
  6. Step 6: Final answer
    x = 6,825.96

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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.