Home / 14,207.78-21,324.81-7,192.72

Finding the Fourth Proportional to 14,207.78, 21,324.81 and 7,192.72

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Solution

The fourth proportional to 14,207.78, 21,324.81 and 7,192.72 is: 10,795.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,207.78 : 21,324.81 = 7,192.72 : x
  2. Step 2: Convert to fraction form
    14,207.78/21,324.81 = 7,192.72/x
  3. Step 3: Cross multiply
    14,207.78x = 21,324.81 × 7,192.72
  4. Step 4: Simplify right side
    14,207.78x = 153,383,387.38
  5. Step 5: Solve for x
    x = 153,383,387.38/14,207.78
  6. Step 6: Final answer
    x = 10,795.73

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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.