Home / 7,622.80-11,442.38-6,750.70

Finding the Fourth Proportional to 7,622.80, 11,442.38 and 6,750.70

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Solution

The fourth proportional to 7,622.80, 11,442.38 and 6,750.70 is: 10,133.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.80 : 11,442.38 = 6,750.70 : x
  2. Step 2: Convert to fraction form
    7,622.80/11,442.38 = 6,750.70/x
  3. Step 3: Cross multiply
    7,622.80x = 11,442.38 × 6,750.70
  4. Step 4: Simplify right side
    7,622.80x = 77,244,074.67
  5. Step 5: Solve for x
    x = 77,244,074.67/7,622.80
  6. Step 6: Final answer
    x = 10,133.29

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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.