Home / 14,175.62-21,253.81-7,939.92

Finding the Fourth Proportional to 14,175.62, 21,253.81 and 7,939.92

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Solution

The fourth proportional to 14,175.62, 21,253.81 and 7,939.92 is: 11,904.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,175.62 : 21,253.81 = 7,939.92 : x
  2. Step 2: Convert to fraction form
    14,175.62/21,253.81 = 7,939.92/x
  3. Step 3: Cross multiply
    14,175.62x = 21,253.81 × 7,939.92
  4. Step 4: Simplify right side
    14,175.62x = 168,753,551.10
  5. Step 5: Solve for x
    x = 168,753,551.10/14,175.62
  6. Step 6: Final answer
    x = 11,904.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.