Home / 7,321.25-10,104.12-4,805.39

Finding the Fourth Proportional to 7,321.25, 10,104.12 and 4,805.39

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Solution

The fourth proportional to 7,321.25, 10,104.12 and 4,805.39 is: 6,631.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.25 : 10,104.12 = 4,805.39 : x
  2. Step 2: Convert to fraction form
    7,321.25/10,104.12 = 4,805.39/x
  3. Step 3: Cross multiply
    7,321.25x = 10,104.12 × 4,805.39
  4. Step 4: Simplify right side
    7,321.25x = 48,554,237.21
  5. Step 5: Solve for x
    x = 48,554,237.21/7,321.25
  6. Step 6: Final answer
    x = 6,631.96

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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.