Home / 12,462.47-18,779.67-11,292.42

Finding the Fourth Proportional to 12,462.47, 18,779.67 and 11,292.42

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Solution

The fourth proportional to 12,462.47, 18,779.67 and 11,292.42 is: 17,016.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462.47 : 18,779.67 = 11,292.42 : x
  2. Step 2: Convert to fraction form
    12,462.47/18,779.67 = 11,292.42/x
  3. Step 3: Cross multiply
    12,462.47x = 18,779.67 × 11,292.42
  4. Step 4: Simplify right side
    12,462.47x = 212,067,991.53
  5. Step 5: Solve for x
    x = 212,067,991.53/12,462.47
  6. Step 6: Final answer
    x = 17,016.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.