Home / 13,458.36-20,174.46-5,136.04

Finding the Fourth Proportional to 13,458.36, 20,174.46 and 5,136.04

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Solution

The fourth proportional to 13,458.36, 20,174.46 and 5,136.04 is: 7,699.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.36 : 20,174.46 = 5,136.04 : x
  2. Step 2: Convert to fraction form
    13,458.36/20,174.46 = 5,136.04/x
  3. Step 3: Cross multiply
    13,458.36x = 20,174.46 × 5,136.04
  4. Step 4: Simplify right side
    13,458.36x = 103,616,833.54
  5. Step 5: Solve for x
    x = 103,616,833.54/13,458.36
  6. Step 6: Final answer
    x = 7,699.07

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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.