Home / 12,575.12-18,862.82-3,810.41

Finding the Fourth Proportional to 12,575.12, 18,862.82 and 3,810.41

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Solution

The fourth proportional to 12,575.12, 18,862.82 and 3,810.41 is: 5,715.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,575.12 : 18,862.82 = 3,810.41 : x
  2. Step 2: Convert to fraction form
    12,575.12/18,862.82 = 3,810.41/x
  3. Step 3: Cross multiply
    12,575.12x = 18,862.82 × 3,810.41
  4. Step 4: Simplify right side
    12,575.12x = 71,874,964.59
  5. Step 5: Solve for x
    x = 71,874,964.59/12,575.12
  6. Step 6: Final answer
    x = 5,715.65

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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.