Home / 14,180.94-21,270.68-4,320

Finding the Fourth Proportional to 14,180.94, 21,270.68 and 4,320

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Solution

The fourth proportional to 14,180.94, 21,270.68 and 4,320 is: 6,479.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,180.94 : 21,270.68 = 4,320 : x
  2. Step 2: Convert to fraction form
    14,180.94/21,270.68 = 4,320/x
  3. Step 3: Cross multiply
    14,180.94x = 21,270.68 × 4,320
  4. Step 4: Simplify right side
    14,180.94x = 91,889,337.60
  5. Step 5: Solve for x
    x = 91,889,337.60/14,180.94
  6. Step 6: Final answer
    x = 6,479.78

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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.