Home / 14,630.06-20,189.30-8,169.80

Finding the Fourth Proportional to 14,630.06, 20,189.30 and 8,169.80

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Solution

The fourth proportional to 14,630.06, 20,189.30 and 8,169.80 is: 11,274.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,630.06 : 20,189.30 = 8,169.80 : x
  2. Step 2: Convert to fraction form
    14,630.06/20,189.30 = 8,169.80/x
  3. Step 3: Cross multiply
    14,630.06x = 20,189.30 × 8,169.80
  4. Step 4: Simplify right side
    14,630.06x = 164,942,401.34
  5. Step 5: Solve for x
    x = 164,942,401.34/14,630.06
  6. Step 6: Final answer
    x = 11,274.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.