Home / 8,136.10-12,208.20-4,628.80

Finding the Fourth Proportional to 8,136.10, 12,208.20 and 4,628.80

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Solution

The fourth proportional to 8,136.10, 12,208.20 and 4,628.80 is: 6,945.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.10 : 12,208.20 = 4,628.80 : x
  2. Step 2: Convert to fraction form
    8,136.10/12,208.20 = 4,628.80/x
  3. Step 3: Cross multiply
    8,136.10x = 12,208.20 × 4,628.80
  4. Step 4: Simplify right side
    8,136.10x = 56,509,316.16
  5. Step 5: Solve for x
    x = 56,509,316.16/8,136.10
  6. Step 6: Final answer
    x = 6,945.50

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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.