Home / 14,279.67-21,428.36-6,884.88

Finding the Fourth Proportional to 14,279.67, 21,428.36 and 6,884.88

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Solution

The fourth proportional to 14,279.67, 21,428.36 and 6,884.88 is: 10,331.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.67 : 21,428.36 = 6,884.88 : x
  2. Step 2: Convert to fraction form
    14,279.67/21,428.36 = 6,884.88/x
  3. Step 3: Cross multiply
    14,279.67x = 21,428.36 × 6,884.88
  4. Step 4: Simplify right side
    14,279.67x = 147,531,545.63
  5. Step 5: Solve for x
    x = 147,531,545.63/14,279.67
  6. Step 6: Final answer
    x = 10,331.58

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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.