Home / 6,911.15-9,539.25-3,927.11

Finding the Fourth Proportional to 6,911.15, 9,539.25 and 3,927.11

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Solution

The fourth proportional to 6,911.15, 9,539.25 and 3,927.11 is: 5,420.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,911.15 : 9,539.25 = 3,927.11 : x
  2. Step 2: Convert to fraction form
    6,911.15/9,539.25 = 3,927.11/x
  3. Step 3: Cross multiply
    6,911.15x = 9,539.25 × 3,927.11
  4. Step 4: Simplify right side
    6,911.15x = 37,461,684.07
  5. Step 5: Solve for x
    x = 37,461,684.07/6,911.15
  6. Step 6: Final answer
    x = 5,420.47

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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.