Home / 8,518.87-12,759.84-4,127.14

Finding the Fourth Proportional to 8,518.87, 12,759.84 and 4,127.14

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Solution

The fourth proportional to 8,518.87, 12,759.84 and 4,127.14 is: 6,181.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.87 : 12,759.84 = 4,127.14 : x
  2. Step 2: Convert to fraction form
    8,518.87/12,759.84 = 4,127.14/x
  3. Step 3: Cross multiply
    8,518.87x = 12,759.84 × 4,127.14
  4. Step 4: Simplify right side
    8,518.87x = 52,661,646.06
  5. Step 5: Solve for x
    x = 52,661,646.06/8,518.87
  6. Step 6: Final answer
    x = 6,181.76

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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.