Home / 14,651.46-20,220.98-8,279.37

Finding the Fourth Proportional to 14,651.46, 20,220.98 and 8,279.37

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Solution

The fourth proportional to 14,651.46, 20,220.98 and 8,279.37 is: 11,426.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.46 : 20,220.98 = 8,279.37 : x
  2. Step 2: Convert to fraction form
    14,651.46/20,220.98 = 8,279.37/x
  3. Step 3: Cross multiply
    14,651.46x = 20,220.98 × 8,279.37
  4. Step 4: Simplify right side
    14,651.46x = 167,416,933.79
  5. Step 5: Solve for x
    x = 167,416,933.79/14,651.46
  6. Step 6: Final answer
    x = 11,426.64

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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.