Home / 14,220.82-21,305.69-8,374.24

Finding the Fourth Proportional to 14,220.82, 21,305.69 and 8,374.24

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Solution

The fourth proportional to 14,220.82, 21,305.69 and 8,374.24 is: 12,546.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.82 : 21,305.69 = 8,374.24 : x
  2. Step 2: Convert to fraction form
    14,220.82/21,305.69 = 8,374.24/x
  3. Step 3: Cross multiply
    14,220.82x = 21,305.69 × 8,374.24
  4. Step 4: Simplify right side
    14,220.82x = 178,418,866.29
  5. Step 5: Solve for x
    x = 178,418,866.29/14,220.82
  6. Step 6: Final answer
    x = 12,546.32

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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.