Home / 18,445.94-25,460.85-12,858.74

Finding the Fourth Proportional to 18,445.94, 25,460.85 and 12,858.74

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Solution

The fourth proportional to 18,445.94, 25,460.85 and 12,858.74 is: 17,748.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,445.94 : 25,460.85 = 12,858.74 : x
  2. Step 2: Convert to fraction form
    18,445.94/25,460.85 = 12,858.74/x
  3. Step 3: Cross multiply
    18,445.94x = 25,460.85 × 12,858.74
  4. Step 4: Simplify right side
    18,445.94x = 327,394,450.33
  5. Step 5: Solve for x
    x = 327,394,450.33/18,445.94
  6. Step 6: Final answer
    x = 17,748.86

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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.