Home / 8,636.50-12,962.85-3,959.02

Finding the Fourth Proportional to 8,636.50, 12,962.85 and 3,959.02

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Solution

The fourth proportional to 8,636.50, 12,962.85 and 3,959.02 is: 5,942.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.50 : 12,962.85 = 3,959.02 : x
  2. Step 2: Convert to fraction form
    8,636.50/12,962.85 = 3,959.02/x
  3. Step 3: Cross multiply
    8,636.50x = 12,962.85 × 3,959.02
  4. Step 4: Simplify right side
    8,636.50x = 51,320,182.41
  5. Step 5: Solve for x
    x = 51,320,182.41/8,636.50
  6. Step 6: Final answer
    x = 5,942.24

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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.