Home / 7,775.21-10,721.32-5,252.94

Finding the Fourth Proportional to 7,775.21, 10,721.32 and 5,252.94

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Solution

The fourth proportional to 7,775.21, 10,721.32 and 5,252.94 is: 7,243.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.21 : 10,721.32 = 5,252.94 : x
  2. Step 2: Convert to fraction form
    7,775.21/10,721.32 = 5,252.94/x
  3. Step 3: Cross multiply
    7,775.21x = 10,721.32 × 5,252.94
  4. Step 4: Simplify right side
    7,775.21x = 56,318,450.68
  5. Step 5: Solve for x
    x = 56,318,450.68/7,775.21
  6. Step 6: Final answer
    x = 7,243.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.