Home / 11,390.40-17,085.84-3,893.52

Finding the Fourth Proportional to 11,390.40, 17,085.84 and 3,893.52

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Solution

The fourth proportional to 11,390.40, 17,085.84 and 3,893.52 is: 5,840.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.40 : 17,085.84 = 3,893.52 : x
  2. Step 2: Convert to fraction form
    11,390.40/17,085.84 = 3,893.52/x
  3. Step 3: Cross multiply
    11,390.40x = 17,085.84 × 3,893.52
  4. Step 4: Simplify right side
    11,390.40x = 66,524,059.76
  5. Step 5: Solve for x
    x = 66,524,059.76/11,390.40
  6. Step 6: Final answer
    x = 5,840.36

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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.