Home / 14,245.48-19,658.37-7,872.54

Finding the Fourth Proportional to 14,245.48, 19,658.37 and 7,872.54

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Solution

The fourth proportional to 14,245.48, 19,658.37 and 7,872.54 is: 10,863.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,245.48 : 19,658.37 = 7,872.54 : x
  2. Step 2: Convert to fraction form
    14,245.48/19,658.37 = 7,872.54/x
  3. Step 3: Cross multiply
    14,245.48x = 19,658.37 × 7,872.54
  4. Step 4: Simplify right side
    14,245.48x = 154,761,304.16
  5. Step 5: Solve for x
    x = 154,761,304.16/14,245.48
  6. Step 6: Final answer
    x = 10,863.89

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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.