Home / 11,429.60-17,145.64-3,636.60

Finding the Fourth Proportional to 11,429.60, 17,145.64 and 3,636.60

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Solution

The fourth proportional to 11,429.60, 17,145.64 and 3,636.60 is: 5,455.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,429.60 : 17,145.64 = 3,636.60 : x
  2. Step 2: Convert to fraction form
    11,429.60/17,145.64 = 3,636.60/x
  3. Step 3: Cross multiply
    11,429.60x = 17,145.64 × 3,636.60
  4. Step 4: Simplify right side
    11,429.60x = 62,351,834.42
  5. Step 5: Solve for x
    x = 62,351,834.42/11,429.60
  6. Step 6: Final answer
    x = 5,455.29

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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.