Home / 13,893.45-20,790.93-12,253.20

Finding the Fourth Proportional to 13,893.45, 20,790.93 and 12,253.20

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Solution

The fourth proportional to 13,893.45, 20,790.93 and 12,253.20 is: 18,336.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,893.45 : 20,790.93 = 12,253.20 : x
  2. Step 2: Convert to fraction form
    13,893.45/20,790.93 = 12,253.20/x
  3. Step 3: Cross multiply
    13,893.45x = 20,790.93 × 12,253.20
  4. Step 4: Simplify right side
    13,893.45x = 254,755,423.48
  5. Step 5: Solve for x
    x = 254,755,423.48/13,893.45
  6. Step 6: Final answer
    x = 18,336.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.