Home / 8,780.60-13,170.92-3,586.48

Finding the Fourth Proportional to 8,780.60, 13,170.92 and 3,586.48

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Solution

The fourth proportional to 8,780.60, 13,170.92 and 3,586.48 is: 5,379.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.60 : 13,170.92 = 3,586.48 : x
  2. Step 2: Convert to fraction form
    8,780.60/13,170.92 = 3,586.48/x
  3. Step 3: Cross multiply
    8,780.60x = 13,170.92 × 3,586.48
  4. Step 4: Simplify right side
    8,780.60x = 47,237,190.30
  5. Step 5: Solve for x
    x = 47,237,190.30/8,780.60
  6. Step 6: Final answer
    x = 5,379.72

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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.