Home / 6,971.54-9,618.86-4,136.56

Finding the Fourth Proportional to 6,971.54, 9,618.86 and 4,136.56

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Solution

The fourth proportional to 6,971.54, 9,618.86 and 4,136.56 is: 5,707.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,971.54 : 9,618.86 = 4,136.56 : x
  2. Step 2: Convert to fraction form
    6,971.54/9,618.86 = 4,136.56/x
  3. Step 3: Cross multiply
    6,971.54x = 9,618.86 × 4,136.56
  4. Step 4: Simplify right side
    6,971.54x = 39,788,922.74
  5. Step 5: Solve for x
    x = 39,788,922.74/6,971.54
  6. Step 6: Final answer
    x = 5,707.34

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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.