Home / 8,647.43-12,962.84-5,518.60

Finding the Fourth Proportional to 8,647.43, 12,962.84 and 5,518.60

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Solution

The fourth proportional to 8,647.43, 12,962.84 and 5,518.60 is: 8,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.43 : 12,962.84 = 5,518.60 : x
  2. Step 2: Convert to fraction form
    8,647.43/12,962.84 = 5,518.60/x
  3. Step 3: Cross multiply
    8,647.43x = 12,962.84 × 5,518.60
  4. Step 4: Simplify right side
    8,647.43x = 71,536,668.82
  5. Step 5: Solve for x
    x = 71,536,668.82/8,647.43
  6. Step 6: Final answer
    x = 8,272.60

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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.