Home / 7,153.21-9,872.01-3,966.82

Finding the Fourth Proportional to 7,153.21, 9,872.01 and 3,966.82

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Solution

The fourth proportional to 7,153.21, 9,872.01 and 3,966.82 is: 5,474.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153.21 : 9,872.01 = 3,966.82 : x
  2. Step 2: Convert to fraction form
    7,153.21/9,872.01 = 3,966.82/x
  3. Step 3: Cross multiply
    7,153.21x = 9,872.01 × 3,966.82
  4. Step 4: Simplify right side
    7,153.21x = 39,160,517.56
  5. Step 5: Solve for x
    x = 39,160,517.56/7,153.21
  6. Step 6: Final answer
    x = 5,474.54

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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.