Home / 7,967.12-10,991.61-4,940.82

Finding the Fourth Proportional to 7,967.12, 10,991.61 and 4,940.82

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Solution

The fourth proportional to 7,967.12, 10,991.61 and 4,940.82 is: 6,816.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,967.12 : 10,991.61 = 4,940.82 : x
  2. Step 2: Convert to fraction form
    7,967.12/10,991.61 = 4,940.82/x
  3. Step 3: Cross multiply
    7,967.12x = 10,991.61 × 4,940.82
  4. Step 4: Simplify right side
    7,967.12x = 54,307,566.52
  5. Step 5: Solve for x
    x = 54,307,566.52/7,967.12
  6. Step 6: Final answer
    x = 6,816.47

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1.5x scale

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.