Home / 8,612.60-12,909.58-4,451.49

Finding the Fourth Proportional to 8,612.60, 12,909.58 and 4,451.49

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Solution

The fourth proportional to 8,612.60, 12,909.58 and 4,451.49 is: 6,672.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,612.60 : 12,909.58 = 4,451.49 : x
  2. Step 2: Convert to fraction form
    8,612.60/12,909.58 = 4,451.49/x
  3. Step 3: Cross multiply
    8,612.60x = 12,909.58 × 4,451.49
  4. Step 4: Simplify right side
    8,612.60x = 57,466,855.15
  5. Step 5: Solve for x
    x = 57,466,855.15/8,612.60
  6. Step 6: Final answer
    x = 6,672.42

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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.