Home / 10,688.97-14,747.49-6,211.88

Finding the Fourth Proportional to 10,688.97, 14,747.49 and 6,211.88

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Solution

The fourth proportional to 10,688.97, 14,747.49 and 6,211.88 is: 8,570.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,688.97 : 14,747.49 = 6,211.88 : x
  2. Step 2: Convert to fraction form
    10,688.97/14,747.49 = 6,211.88/x
  3. Step 3: Cross multiply
    10,688.97x = 14,747.49 × 6,211.88
  4. Step 4: Simplify right side
    10,688.97x = 91,609,564.44
  5. Step 5: Solve for x
    x = 91,609,564.44/10,688.97
  6. Step 6: Final answer
    x = 8,570.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.