Home / 19,872.42-29,790.10-6,715.59

Finding the Fourth Proportional to 19,872.42, 29,790.10 and 6,715.59

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Solution

The fourth proportional to 19,872.42, 29,790.10 and 6,715.59 is: 10,067.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.42 : 29,790.10 = 6,715.59 : x
  2. Step 2: Convert to fraction form
    19,872.42/29,790.10 = 6,715.59/x
  3. Step 3: Cross multiply
    19,872.42x = 29,790.10 × 6,715.59
  4. Step 4: Simplify right side
    19,872.42x = 200,058,097.66
  5. Step 5: Solve for x
    x = 200,058,097.66/19,872.42
  6. Step 6: Final answer
    x = 10,067.12

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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.