Home / 14,428.89-21,668.04-8,914.95

Finding the Fourth Proportional to 14,428.89, 21,668.04 and 8,914.95

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Solution

The fourth proportional to 14,428.89, 21,668.04 and 8,914.95 is: 13,387.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,428.89 : 21,668.04 = 8,914.95 : x
  2. Step 2: Convert to fraction form
    14,428.89/21,668.04 = 8,914.95/x
  3. Step 3: Cross multiply
    14,428.89x = 21,668.04 × 8,914.95
  4. Step 4: Simplify right side
    14,428.89x = 193,169,493.20
  5. Step 5: Solve for x
    x = 193,169,493.20/14,428.89
  6. Step 6: Final answer
    x = 13,387.69

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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.