Home / 18,672.95-25,771.41-12,298.53

Finding the Fourth Proportional to 18,672.95, 25,771.41 and 12,298.53

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Solution

The fourth proportional to 18,672.95, 25,771.41 and 12,298.53 is: 16,973.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,672.95 : 25,771.41 = 12,298.53 : x
  2. Step 2: Convert to fraction form
    18,672.95/25,771.41 = 12,298.53/x
  3. Step 3: Cross multiply
    18,672.95x = 25,771.41 × 12,298.53
  4. Step 4: Simplify right side
    18,672.95x = 316,950,408.50
  5. Step 5: Solve for x
    x = 316,950,408.50/18,672.95
  6. Step 6: Final answer
    x = 16,973.78

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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.