Home / 13,731.72-20,558.16-11,651.64

Finding the Fourth Proportional to 13,731.72, 20,558.16 and 11,651.64

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Solution

The fourth proportional to 13,731.72, 20,558.16 and 11,651.64 is: 17,444.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.72 : 20,558.16 = 11,651.64 : x
  2. Step 2: Convert to fraction form
    13,731.72/20,558.16 = 11,651.64/x
  3. Step 3: Cross multiply
    13,731.72x = 20,558.16 × 11,651.64
  4. Step 4: Simplify right side
    13,731.72x = 239,536,279.38
  5. Step 5: Solve for x
    x = 239,536,279.38/13,731.72
  6. Step 6: Final answer
    x = 17,444.01

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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.