Home / 7,477.05-11,218.20-4,192.90

Finding the Fourth Proportional to 7,477.05, 11,218.20 and 4,192.90

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Solution

The fourth proportional to 7,477.05, 11,218.20 and 4,192.90 is: 6,290.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.05 : 11,218.20 = 4,192.90 : x
  2. Step 2: Convert to fraction form
    7,477.05/11,218.20 = 4,192.90/x
  3. Step 3: Cross multiply
    7,477.05x = 11,218.20 × 4,192.90
  4. Step 4: Simplify right side
    7,477.05x = 47,036,790.78
  5. Step 5: Solve for x
    x = 47,036,790.78/7,477.05
  6. Step 6: Final answer
    x = 6,290.83

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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.