Home / 8,758.90-12,087.46-4,780.18

Finding the Fourth Proportional to 8,758.90, 12,087.46 and 4,780.18

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Solution

The fourth proportional to 8,758.90, 12,087.46 and 4,780.18 is: 6,596.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.90 : 12,087.46 = 4,780.18 : x
  2. Step 2: Convert to fraction form
    8,758.90/12,087.46 = 4,780.18/x
  3. Step 3: Cross multiply
    8,758.90x = 12,087.46 × 4,780.18
  4. Step 4: Simplify right side
    8,758.90x = 57,780,234.54
  5. Step 5: Solve for x
    x = 57,780,234.54/8,758.90
  6. Step 6: Final answer
    x = 6,596.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.