Home / 7,153.82-9,872.40-4,169.83

Finding the Fourth Proportional to 7,153.82, 9,872.40 and 4,169.83

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Solution

The fourth proportional to 7,153.82, 9,872.40 and 4,169.83 is: 5,754.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153.82 : 9,872.40 = 4,169.83 : x
  2. Step 2: Convert to fraction form
    7,153.82/9,872.40 = 4,169.83/x
  3. Step 3: Cross multiply
    7,153.82x = 9,872.40 × 4,169.83
  4. Step 4: Simplify right side
    7,153.82x = 41,166,159.48
  5. Step 5: Solve for x
    x = 41,166,159.48/7,153.82
  6. Step 6: Final answer
    x = 5,754.43

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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.