Home / 7,321.06-10,104.78-4,672.36

Finding the Fourth Proportional to 7,321.06, 10,104.78 and 4,672.36

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Solution

The fourth proportional to 7,321.06, 10,104.78 and 4,672.36 is: 6,448.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.06 : 10,104.78 = 4,672.36 : x
  2. Step 2: Convert to fraction form
    7,321.06/10,104.78 = 4,672.36/x
  3. Step 3: Cross multiply
    7,321.06x = 10,104.78 × 4,672.36
  4. Step 4: Simplify right side
    7,321.06x = 47,213,169.88
  5. Step 5: Solve for x
    x = 47,213,169.88/7,321.06
  6. Step 6: Final answer
    x = 6,448.95

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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.