Home / 8,518.84-12,778.77-2,675.45

Finding the Fourth Proportional to 8,518.84, 12,778.77 and 2,675.45

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Solution

The fourth proportional to 8,518.84, 12,778.77 and 2,675.45 is: 4,013.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.84 : 12,778.77 = 2,675.45 : x
  2. Step 2: Convert to fraction form
    8,518.84/12,778.77 = 2,675.45/x
  3. Step 3: Cross multiply
    8,518.84x = 12,778.77 × 2,675.45
  4. Step 4: Simplify right side
    8,518.84x = 34,188,958.71
  5. Step 5: Solve for x
    x = 34,188,958.71/8,518.84
  6. Step 6: Final answer
    x = 4,013.33

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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.