Home / 13,998.45-20,895.25-12,337.74

Finding the Fourth Proportional to 13,998.45, 20,895.25 and 12,337.74

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Solution

The fourth proportional to 13,998.45, 20,895.25 and 12,337.74 is: 18,416.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.45 : 20,895.25 = 12,337.74 : x
  2. Step 2: Convert to fraction form
    13,998.45/20,895.25 = 12,337.74/x
  3. Step 3: Cross multiply
    13,998.45x = 20,895.25 × 12,337.74
  4. Step 4: Simplify right side
    13,998.45x = 257,800,161.74
  5. Step 5: Solve for x
    x = 257,800,161.74/13,998.45
  6. Step 6: Final answer
    x = 18,416.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.