Home / 18,757.24-25,881.83-12,039.50

Finding the Fourth Proportional to 18,757.24, 25,881.83 and 12,039.50

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Solution

The fourth proportional to 18,757.24, 25,881.83 and 12,039.50 is: 16,612.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,757.24 : 25,881.83 = 12,039.50 : x
  2. Step 2: Convert to fraction form
    18,757.24/25,881.83 = 12,039.50/x
  3. Step 3: Cross multiply
    18,757.24x = 25,881.83 × 12,039.50
  4. Step 4: Simplify right side
    18,757.24x = 311,604,341.94
  5. Step 5: Solve for x
    x = 311,604,341.94/18,757.24
  6. Step 6: Final answer
    x = 16,612.49

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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.