Home / 14,286.20-21,428.89-4,926.04

Finding the Fourth Proportional to 14,286.20, 21,428.89 and 4,926.04

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Solution

The fourth proportional to 14,286.20, 21,428.89 and 4,926.04 is: 7,388.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.20 : 21,428.89 = 4,926.04 : x
  2. Step 2: Convert to fraction form
    14,286.20/21,428.89 = 4,926.04/x
  3. Step 3: Cross multiply
    14,286.20x = 21,428.89 × 4,926.04
  4. Step 4: Simplify right side
    14,286.20x = 105,559,503.41
  5. Step 5: Solve for x
    x = 105,559,503.41/14,286.20
  6. Step 6: Final answer
    x = 7,388.92

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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.