Home / 12,927.12-19,390.80-3,567.66

Finding the Fourth Proportional to 12,927.12, 19,390.80 and 3,567.66

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Solution

The fourth proportional to 12,927.12, 19,390.80 and 3,567.66 is: 5,351.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,927.12 : 19,390.80 = 3,567.66 : x
  2. Step 2: Convert to fraction form
    12,927.12/19,390.80 = 3,567.66/x
  3. Step 3: Cross multiply
    12,927.12x = 19,390.80 × 3,567.66
  4. Step 4: Simplify right side
    12,927.12x = 69,179,781.53
  5. Step 5: Solve for x
    x = 69,179,781.53/12,927.12
  6. Step 6: Final answer
    x = 5,351.52

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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.