Home / 8,758.92-12,087.32-4,780.05

Finding the Fourth Proportional to 8,758.92, 12,087.32 and 4,780.05

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Solution

The fourth proportional to 8,758.92, 12,087.32 and 4,780.05 is: 6,596.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.92 : 12,087.32 = 4,780.05 : x
  2. Step 2: Convert to fraction form
    8,758.92/12,087.32 = 4,780.05/x
  3. Step 3: Cross multiply
    8,758.92x = 12,087.32 × 4,780.05
  4. Step 4: Simplify right side
    8,758.92x = 57,777,993.97
  5. Step 5: Solve for x
    x = 57,777,993.97/8,758.92
  6. Step 6: Final answer
    x = 6,596.47

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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.