Home / 11,763.20-17,644.80-7,385.60

Finding the Fourth Proportional to 11,763.20, 17,644.80 and 7,385.60

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Solution

The fourth proportional to 11,763.20, 17,644.80 and 7,385.60 is: 11,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,763.20 : 17,644.80 = 7,385.60 : x
  2. Step 2: Convert to fraction form
    11,763.20/17,644.80 = 7,385.60/x
  3. Step 3: Cross multiply
    11,763.20x = 17,644.80 × 7,385.60
  4. Step 4: Simplify right side
    11,763.20x = 130,317,434.88
  5. Step 5: Solve for x
    x = 130,317,434.88/11,763.20
  6. Step 6: Final answer
    x = 11,078.40

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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.