Home / 13,907.64-20,861.58-11,127.42

Finding the Fourth Proportional to 13,907.64, 20,861.58 and 11,127.42

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Solution

The fourth proportional to 13,907.64, 20,861.58 and 11,127.42 is: 16,691.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.64 : 20,861.58 = 11,127.42 : x
  2. Step 2: Convert to fraction form
    13,907.64/20,861.58 = 11,127.42/x
  3. Step 3: Cross multiply
    13,907.64x = 20,861.58 × 11,127.42
  4. Step 4: Simplify right side
    13,907.64x = 232,135,562.52
  5. Step 5: Solve for x
    x = 232,135,562.52/13,907.64
  6. Step 6: Final answer
    x = 16,691.23

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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.