Home / 14,690.36-20,279.30-8,723.97

Finding the Fourth Proportional to 14,690.36, 20,279.30 and 8,723.97

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Solution

The fourth proportional to 14,690.36, 20,279.30 and 8,723.97 is: 12,042.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,690.36 : 20,279.30 = 8,723.97 : x
  2. Step 2: Convert to fraction form
    14,690.36/20,279.30 = 8,723.97/x
  3. Step 3: Cross multiply
    14,690.36x = 20,279.30 × 8,723.97
  4. Step 4: Simplify right side
    14,690.36x = 176,915,961.20
  5. Step 5: Solve for x
    x = 176,915,961.20/14,690.36
  6. Step 6: Final answer
    x = 12,042.99

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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.