Home / 7,423.80-11,137.74-3,721.56

Finding the Fourth Proportional to 7,423.80, 11,137.74 and 3,721.56

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Solution

The fourth proportional to 7,423.80, 11,137.74 and 3,721.56 is: 5,583.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,423.80 : 11,137.74 = 3,721.56 : x
  2. Step 2: Convert to fraction form
    7,423.80/11,137.74 = 3,721.56/x
  3. Step 3: Cross multiply
    7,423.80x = 11,137.74 × 3,721.56
  4. Step 4: Simplify right side
    7,423.80x = 41,449,767.67
  5. Step 5: Solve for x
    x = 41,449,767.67/7,423.80
  6. Step 6: Final answer
    x = 5,583.36

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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.