Home / 19,146.89-26,418.80-11,187.58

Finding the Fourth Proportional to 19,146.89, 26,418.80 and 11,187.58

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Solution

The fourth proportional to 19,146.89, 26,418.80 and 11,187.58 is: 15,436.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,146.89 : 26,418.80 = 11,187.58 : x
  2. Step 2: Convert to fraction form
    19,146.89/26,418.80 = 11,187.58/x
  3. Step 3: Cross multiply
    19,146.89x = 26,418.80 × 11,187.58
  4. Step 4: Simplify right side
    19,146.89x = 295,562,499.50
  5. Step 5: Solve for x
    x = 295,562,499.50/19,146.89
  6. Step 6: Final answer
    x = 15,436.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.