Home / 12,447.01-18,627.45-11,930.34

Finding the Fourth Proportional to 12,447.01, 18,627.45 and 11,930.34

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Solution

The fourth proportional to 12,447.01, 18,627.45 and 11,930.34 is: 17,854.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.01 : 18,627.45 = 11,930.34 : x
  2. Step 2: Convert to fraction form
    12,447.01/18,627.45 = 11,930.34/x
  3. Step 3: Cross multiply
    12,447.01x = 18,627.45 × 11,930.34
  4. Step 4: Simplify right side
    12,447.01x = 222,231,811.83
  5. Step 5: Solve for x
    x = 222,231,811.83/12,447.01
  6. Step 6: Final answer
    x = 17,854.23

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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.