Home / 14,138.22-21,179.02-8,512.76

Finding the Fourth Proportional to 14,138.22, 21,179.02 and 8,512.76

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Solution

The fourth proportional to 14,138.22, 21,179.02 and 8,512.76 is: 12,752.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.22 : 21,179.02 = 8,512.76 : x
  2. Step 2: Convert to fraction form
    14,138.22/21,179.02 = 8,512.76/x
  3. Step 3: Cross multiply
    14,138.22x = 21,179.02 × 8,512.76
  4. Step 4: Simplify right side
    14,138.22x = 180,291,914.30
  5. Step 5: Solve for x
    x = 180,291,914.30/14,138.22
  6. Step 6: Final answer
    x = 12,752.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.