Home / 14,883.76-20,540.19-8,169.63

Finding the Fourth Proportional to 14,883.76, 20,540.19 and 8,169.63

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Solution

The fourth proportional to 14,883.76, 20,540.19 and 8,169.63 is: 11,274.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,883.76 : 20,540.19 = 8,169.63 : x
  2. Step 2: Convert to fraction form
    14,883.76/20,540.19 = 8,169.63/x
  3. Step 3: Cross multiply
    14,883.76x = 20,540.19 × 8,169.63
  4. Step 4: Simplify right side
    14,883.76x = 167,805,752.43
  5. Step 5: Solve for x
    x = 167,805,752.43/14,883.76
  6. Step 6: Final answer
    x = 11,274.42

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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.