Home / 14,518.20-21,777.30-4,129.95

Finding the Fourth Proportional to 14,518.20, 21,777.30 and 4,129.95

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Solution

The fourth proportional to 14,518.20, 21,777.30 and 4,129.95 is: 6,194.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,518.20 : 21,777.30 = 4,129.95 : x
  2. Step 2: Convert to fraction form
    14,518.20/21,777.30 = 4,129.95/x
  3. Step 3: Cross multiply
    14,518.20x = 21,777.30 × 4,129.95
  4. Step 4: Simplify right side
    14,518.20x = 89,939,046.44
  5. Step 5: Solve for x
    x = 89,939,046.44/14,518.20
  6. Step 6: Final answer
    x = 6,194.92

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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.