Home / 7,620.08-11,399.88-4,799.12

Finding the Fourth Proportional to 7,620.08, 11,399.88 and 4,799.12

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Solution

The fourth proportional to 7,620.08, 11,399.88 and 4,799.12 is: 7,179.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.08 : 11,399.88 = 4,799.12 : x
  2. Step 2: Convert to fraction form
    7,620.08/11,399.88 = 4,799.12/x
  3. Step 3: Cross multiply
    7,620.08x = 11,399.88 × 4,799.12
  4. Step 4: Simplify right side
    7,620.08x = 54,709,392.11
  5. Step 5: Solve for x
    x = 54,709,392.11/7,620.08
  6. Step 6: Final answer
    x = 7,179.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.