Home / 12,621.58-18,899.54-6,749.48

Finding the Fourth Proportional to 12,621.58, 18,899.54 and 6,749.48

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Solution

The fourth proportional to 12,621.58, 18,899.54 and 6,749.48 is: 10,106.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621.58 : 18,899.54 = 6,749.48 : x
  2. Step 2: Convert to fraction form
    12,621.58/18,899.54 = 6,749.48/x
  3. Step 3: Cross multiply
    12,621.58x = 18,899.54 × 6,749.48
  4. Step 4: Simplify right side
    12,621.58x = 127,562,067.24
  5. Step 5: Solve for x
    x = 127,562,067.24/12,621.58
  6. Step 6: Final answer
    x = 10,106.66

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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.