Home / 13,840.45-20,725.94-8,553.74

Finding the Fourth Proportional to 13,840.45, 20,725.94 and 8,553.74

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Solution

The fourth proportional to 13,840.45, 20,725.94 and 8,553.74 is: 12,809.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.45 : 20,725.94 = 8,553.74 : x
  2. Step 2: Convert to fraction form
    13,840.45/20,725.94 = 8,553.74/x
  3. Step 3: Cross multiply
    13,840.45x = 20,725.94 × 8,553.74
  4. Step 4: Simplify right side
    13,840.45x = 177,284,219.77
  5. Step 5: Solve for x
    x = 177,284,219.77/13,840.45
  6. Step 6: Final answer
    x = 12,809.14

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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.