Home / 14,319.70-21,485.03-8,086.75

Finding the Fourth Proportional to 14,319.70, 21,485.03 and 8,086.75

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Solution

The fourth proportional to 14,319.70, 21,485.03 and 8,086.75 is: 12,133.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,319.70 : 21,485.03 = 8,086.75 : x
  2. Step 2: Convert to fraction form
    14,319.70/21,485.03 = 8,086.75/x
  3. Step 3: Cross multiply
    14,319.70x = 21,485.03 × 8,086.75
  4. Step 4: Simplify right side
    14,319.70x = 173,743,972.21
  5. Step 5: Solve for x
    x = 173,743,972.21/14,319.70
  6. Step 6: Final answer
    x = 12,133.22

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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.