Home / 8,780.12-13,170.20-3,586.00

Finding the Fourth Proportional to 8,780.12, 13,170.20 and 3,586.00

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Solution

The fourth proportional to 8,780.12, 13,170.20 and 3,586.00 is: 5,379.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.12 : 13,170.20 = 3,586.00 : x
  2. Step 2: Convert to fraction form
    8,780.12/13,170.20 = 3,586.00/x
  3. Step 3: Cross multiply
    8,780.12x = 13,170.20 × 3,586.00
  4. Step 4: Simplify right side
    8,780.12x = 47,228,286.34
  5. Step 5: Solve for x
    x = 47,228,286.34/8,780.12
  6. Step 6: Final answer
    x = 5,379.00

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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.