Home / 14,876.21-20,529.38-8,161.72

Finding the Fourth Proportional to 14,876.21, 20,529.38 and 8,161.72

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Solution

The fourth proportional to 14,876.21, 20,529.38 and 8,161.72 is: 11,263.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,876.21 : 20,529.38 = 8,161.72 : x
  2. Step 2: Convert to fraction form
    14,876.21/20,529.38 = 8,161.72/x
  3. Step 3: Cross multiply
    14,876.21x = 20,529.38 × 8,161.72
  4. Step 4: Simplify right side
    14,876.21x = 167,555,020.41
  5. Step 5: Solve for x
    x = 167,555,020.41/14,876.21
  6. Step 6: Final answer
    x = 11,263.28

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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.