Home / 14,284.80-21,435.30-5,520.33

Finding the Fourth Proportional to 14,284.80, 21,435.30 and 5,520.33

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Solution

The fourth proportional to 14,284.80, 21,435.30 and 5,520.33 is: 8,283.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,284.80 : 21,435.30 = 5,520.33 : x
  2. Step 2: Convert to fraction form
    14,284.80/21,435.30 = 5,520.33/x
  3. Step 3: Cross multiply
    14,284.80x = 21,435.30 × 5,520.33
  4. Step 4: Simplify right side
    14,284.80x = 118,329,929.65
  5. Step 5: Solve for x
    x = 118,329,929.65/14,284.80
  6. Step 6: Final answer
    x = 8,283.63

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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.