Home / 9,149.24-12,621.30-5,786.39

Finding the Fourth Proportional to 9,149.24, 12,621.30 and 5,786.39

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Solution

The fourth proportional to 9,149.24, 12,621.30 and 5,786.39 is: 7,982.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,149.24 : 12,621.30 = 5,786.39 : x
  2. Step 2: Convert to fraction form
    9,149.24/12,621.30 = 5,786.39/x
  3. Step 3: Cross multiply
    9,149.24x = 12,621.30 × 5,786.39
  4. Step 4: Simplify right side
    9,149.24x = 73,031,764.11
  5. Step 5: Solve for x
    x = 73,031,764.11/9,149.24
  6. Step 6: Final answer
    x = 7,982.28

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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.