Home / 8,878.40-12,257.94-5,524.88

Finding the Fourth Proportional to 8,878.40, 12,257.94 and 5,524.88

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Solution

The fourth proportional to 8,878.40, 12,257.94 and 5,524.88 is: 7,627.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.40 : 12,257.94 = 5,524.88 : x
  2. Step 2: Convert to fraction form
    8,878.40/12,257.94 = 5,524.88/x
  3. Step 3: Cross multiply
    8,878.40x = 12,257.94 × 5,524.88
  4. Step 4: Simplify right side
    8,878.40x = 67,723,647.55
  5. Step 5: Solve for x
    x = 67,723,647.55/8,878.40
  6. Step 6: Final answer
    x = 7,627.91

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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.