Home / 12,645.58-18,976.83-5,250.04

Finding the Fourth Proportional to 12,645.58, 18,976.83 and 5,250.04

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Solution

The fourth proportional to 12,645.58, 18,976.83 and 5,250.04 is: 7,878.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645.58 : 18,976.83 = 5,250.04 : x
  2. Step 2: Convert to fraction form
    12,645.58/18,976.83 = 5,250.04/x
  3. Step 3: Cross multiply
    12,645.58x = 18,976.83 × 5,250.04
  4. Step 4: Simplify right side
    12,645.58x = 99,629,069.13
  5. Step 5: Solve for x
    x = 99,629,069.13/12,645.58
  6. Step 6: Final answer
    x = 7,878.57

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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.