Home / 19,121.72-26,387.78-10,508.04

Finding the Fourth Proportional to 19,121.72, 26,387.78 and 10,508.04

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Solution

The fourth proportional to 19,121.72, 26,387.78 and 10,508.04 is: 14,500.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.72 : 26,387.78 = 10,508.04 : x
  2. Step 2: Convert to fraction form
    19,121.72/26,387.78 = 10,508.04/x
  3. Step 3: Cross multiply
    19,121.72x = 26,387.78 × 10,508.04
  4. Step 4: Simplify right side
    19,121.72x = 277,283,795.21
  5. Step 5: Solve for x
    x = 277,283,795.21/19,121.72
  6. Step 6: Final answer
    x = 14,500.99

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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.