Home / 19,872.54-29,790.28-6,715.76

Finding the Fourth Proportional to 19,872.54, 29,790.28 and 6,715.76

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Solution

The fourth proportional to 19,872.54, 29,790.28 and 6,715.76 is: 10,067.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.54 : 29,790.28 = 6,715.76 : x
  2. Step 2: Convert to fraction form
    19,872.54/29,790.28 = 6,715.76/x
  3. Step 3: Cross multiply
    19,872.54x = 29,790.28 × 6,715.76
  4. Step 4: Simplify right side
    19,872.54x = 200,064,397.83
  5. Step 5: Solve for x
    x = 200,064,397.83/19,872.54
  6. Step 6: Final answer
    x = 10,067.38

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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.