Home / 13,592.88-20,286.72-12,477.60

Finding the Fourth Proportional to 13,592.88, 20,286.72 and 12,477.60

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Solution

The fourth proportional to 13,592.88, 20,286.72 and 12,477.60 is: 18,622.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,592.88 : 20,286.72 = 12,477.60 : x
  2. Step 2: Convert to fraction form
    13,592.88/20,286.72 = 12,477.60/x
  3. Step 3: Cross multiply
    13,592.88x = 20,286.72 × 12,477.60
  4. Step 4: Simplify right side
    13,592.88x = 253,129,577.47
  5. Step 5: Solve for x
    x = 253,129,577.47/13,592.88
  6. Step 6: Final answer
    x = 18,622.22

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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.