Home / 7,352.40-11,050.20-7,222.80

Finding the Fourth Proportional to 7,352.40, 11,050.20 and 7,222.80

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Solution

The fourth proportional to 7,352.40, 11,050.20 and 7,222.80 is: 10,855.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,352.40 : 11,050.20 = 7,222.80 : x
  2. Step 2: Convert to fraction form
    7,352.40/11,050.20 = 7,222.80/x
  3. Step 3: Cross multiply
    7,352.40x = 11,050.20 × 7,222.80
  4. Step 4: Simplify right side
    7,352.40x = 79,813,384.56
  5. Step 5: Solve for x
    x = 79,813,384.56/7,352.40
  6. Step 6: Final answer
    x = 10,855.42

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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.