Home / 18,579.41-25,625.50-12,114.77

Finding the Fourth Proportional to 18,579.41, 25,625.50 and 12,114.77

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Solution

The fourth proportional to 18,579.41, 25,625.50 and 12,114.77 is: 16,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.41 : 25,625.50 = 12,114.77 : x
  2. Step 2: Convert to fraction form
    18,579.41/25,625.50 = 12,114.77/x
  3. Step 3: Cross multiply
    18,579.41x = 25,625.50 × 12,114.77
  4. Step 4: Simplify right side
    18,579.41x = 310,446,978.06
  5. Step 5: Solve for x
    x = 310,446,978.06/18,579.41
  6. Step 6: Final answer
    x = 16,709.20

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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.