Home / 7,438.80-11,163.60-4,972.80

Finding the Fourth Proportional to 7,438.80, 11,163.60 and 4,972.80

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Solution

The fourth proportional to 7,438.80, 11,163.60 and 4,972.80 is: 7,462.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438.80 : 11,163.60 = 4,972.80 : x
  2. Step 2: Convert to fraction form
    7,438.80/11,163.60 = 4,972.80/x
  3. Step 3: Cross multiply
    7,438.80x = 11,163.60 × 4,972.80
  4. Step 4: Simplify right side
    7,438.80x = 55,514,350.08
  5. Step 5: Solve for x
    x = 55,514,350.08/7,438.80
  6. Step 6: Final answer
    x = 7,462.81

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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.