Home / 12,045.48-18,053.64-6,198.90

Finding the Fourth Proportional to 12,045.48, 18,053.64 and 6,198.90

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Solution

The fourth proportional to 12,045.48, 18,053.64 and 6,198.90 is: 9,290.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.48 : 18,053.64 = 6,198.90 : x
  2. Step 2: Convert to fraction form
    12,045.48/18,053.64 = 6,198.90/x
  3. Step 3: Cross multiply
    12,045.48x = 18,053.64 × 6,198.90
  4. Step 4: Simplify right side
    12,045.48x = 111,912,709.00
  5. Step 5: Solve for x
    x = 111,912,709.00/12,045.48
  6. Step 6: Final answer
    x = 9,290.85

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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.