Home / 14,168.21-21,252.72-8,320.82

Finding the Fourth Proportional to 14,168.21, 21,252.72 and 8,320.82

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Solution

The fourth proportional to 14,168.21, 21,252.72 and 8,320.82 is: 12,481.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,168.21 : 21,252.72 = 8,320.82 : x
  2. Step 2: Convert to fraction form
    14,168.21/21,252.72 = 8,320.82/x
  3. Step 3: Cross multiply
    14,168.21x = 21,252.72 × 8,320.82
  4. Step 4: Simplify right side
    14,168.21x = 176,840,057.63
  5. Step 5: Solve for x
    x = 176,840,057.63/14,168.21
  6. Step 6: Final answer
    x = 12,481.47

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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.