Home / 7,153.62-9,872.58-3,967.58

Finding the Fourth Proportional to 7,153.62, 9,872.58 and 3,967.58

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Solution

The fourth proportional to 7,153.62, 9,872.58 and 3,967.58 is: 5,475.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153.62 : 9,872.58 = 3,967.58 : x
  2. Step 2: Convert to fraction form
    7,153.62/9,872.58 = 3,967.58/x
  3. Step 3: Cross multiply
    7,153.62x = 9,872.58 × 3,967.58
  4. Step 4: Simplify right side
    7,153.62x = 39,170,290.52
  5. Step 5: Solve for x
    x = 39,170,290.52/7,153.62
  6. Step 6: Final answer
    x = 5,475.59

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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.