Home / 13,913.13-20,845.40-11,588.08

Finding the Fourth Proportional to 13,913.13, 20,845.40 and 11,588.08

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Solution

The fourth proportional to 13,913.13, 20,845.40 and 11,588.08 is: 17,361.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.13 : 20,845.40 = 11,588.08 : x
  2. Step 2: Convert to fraction form
    13,913.13/20,845.40 = 11,588.08/x
  3. Step 3: Cross multiply
    13,913.13x = 20,845.40 × 11,588.08
  4. Step 4: Simplify right side
    13,913.13x = 241,558,157.05
  5. Step 5: Solve for x
    x = 241,558,157.05/13,913.13
  6. Step 6: Final answer
    x = 17,361.88

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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.