Home / 10,351.80-14,293.26-7,221.96

Finding the Fourth Proportional to 10,351.80, 14,293.26 and 7,221.96

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Solution

The fourth proportional to 10,351.80, 14,293.26 and 7,221.96 is: 9,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,351.80 : 14,293.26 = 7,221.96 : x
  2. Step 2: Convert to fraction form
    10,351.80/14,293.26 = 7,221.96/x
  3. Step 3: Cross multiply
    10,351.80x = 14,293.26 × 7,221.96
  4. Step 4: Simplify right side
    10,351.80x = 103,225,351.99
  5. Step 5: Solve for x
    x = 103,225,351.99/10,351.80
  6. Step 6: Final answer
    x = 9,971.73

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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.