Home / 14,221.56-21,291.03-8,280.33

Finding the Fourth Proportional to 14,221.56, 21,291.03 and 8,280.33

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Solution

The fourth proportional to 14,221.56, 21,291.03 and 8,280.33 is: 12,396.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.56 : 21,291.03 = 8,280.33 : x
  2. Step 2: Convert to fraction form
    14,221.56/21,291.03 = 8,280.33/x
  3. Step 3: Cross multiply
    14,221.56x = 21,291.03 × 8,280.33
  4. Step 4: Simplify right side
    14,221.56x = 176,296,674.60
  5. Step 5: Solve for x
    x = 176,296,674.60/14,221.56
  6. Step 6: Final answer
    x = 12,396.43

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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.