Home / 7,321.54-11,039.72-6,709.18

Finding the Fourth Proportional to 7,321.54, 11,039.72 and 6,709.18

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Solution

The fourth proportional to 7,321.54, 11,039.72 and 6,709.18 is: 10,116.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.54 : 11,039.72 = 6,709.18 : x
  2. Step 2: Convert to fraction form
    7,321.54/11,039.72 = 6,709.18/x
  3. Step 3: Cross multiply
    7,321.54x = 11,039.72 × 6,709.18
  4. Step 4: Simplify right side
    7,321.54x = 74,067,468.63
  5. Step 5: Solve for x
    x = 74,067,468.63/7,321.54
  6. Step 6: Final answer
    x = 10,116.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.