Home / 13,558.53-20,338.80-3,698.58

Finding the Fourth Proportional to 13,558.53, 20,338.80 and 3,698.58

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Solution

The fourth proportional to 13,558.53, 20,338.80 and 3,698.58 is: 5,548.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.53 : 20,338.80 = 3,698.58 : x
  2. Step 2: Convert to fraction form
    13,558.53/20,338.80 = 3,698.58/x
  3. Step 3: Cross multiply
    13,558.53x = 20,338.80 × 3,698.58
  4. Step 4: Simplify right side
    13,558.53x = 75,224,678.90
  5. Step 5: Solve for x
    x = 75,224,678.90/13,558.53
  6. Step 6: Final answer
    x = 5,548.14

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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.