Home / 11,725.40-17,590.38-3,830.12

Finding the Fourth Proportional to 11,725.40, 17,590.38 and 3,830.12

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Solution

The fourth proportional to 11,725.40, 17,590.38 and 3,830.12 is: 5,745.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,725.40 : 17,590.38 = 3,830.12 : x
  2. Step 2: Convert to fraction form
    11,725.40/17,590.38 = 3,830.12/x
  3. Step 3: Cross multiply
    11,725.40x = 17,590.38 × 3,830.12
  4. Step 4: Simplify right side
    11,725.40x = 67,373,266.25
  5. Step 5: Solve for x
    x = 67,373,266.25/11,725.40
  6. Step 6: Final answer
    x = 5,745.92

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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.