Home / 12,862.88-19,294.52-4,105.16

Finding the Fourth Proportional to 12,862.88, 19,294.52 and 4,105.16

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Solution

The fourth proportional to 12,862.88, 19,294.52 and 4,105.16 is: 6,157.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,862.88 : 19,294.52 = 4,105.16 : x
  2. Step 2: Convert to fraction form
    12,862.88/19,294.52 = 4,105.16/x
  3. Step 3: Cross multiply
    12,862.88x = 19,294.52 × 4,105.16
  4. Step 4: Simplify right side
    12,862.88x = 79,207,091.72
  5. Step 5: Solve for x
    x = 79,207,091.72/12,862.88
  6. Step 6: Final answer
    x = 6,157.80

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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.