Home / 17,928.89-26,863.40-12,655.25

Finding the Fourth Proportional to 17,928.89, 26,863.40 and 12,655.25

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Solution

The fourth proportional to 17,928.89, 26,863.40 and 12,655.25 is: 18,961.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,928.89 : 26,863.40 = 12,655.25 : x
  2. Step 2: Convert to fraction form
    17,928.89/26,863.40 = 12,655.25/x
  3. Step 3: Cross multiply
    17,928.89x = 26,863.40 × 12,655.25
  4. Step 4: Simplify right side
    17,928.89x = 339,962,940.17
  5. Step 5: Solve for x
    x = 339,962,940.17/17,928.89
  6. Step 6: Final answer
    x = 18,961.74

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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.