Home / 8,136.85-12,209.33-4,629.55

Finding the Fourth Proportional to 8,136.85, 12,209.33 and 4,629.55

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Solution

The fourth proportional to 8,136.85, 12,209.33 and 4,629.55 is: 6,946.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.85 : 12,209.33 = 4,629.55 : x
  2. Step 2: Convert to fraction form
    8,136.85/12,209.33 = 4,629.55/x
  3. Step 3: Cross multiply
    8,136.85x = 12,209.33 × 4,629.55
  4. Step 4: Simplify right side
    8,136.85x = 56,523,680.55
  5. Step 5: Solve for x
    x = 56,523,680.55/8,136.85
  6. Step 6: Final answer
    x = 6,946.63

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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.