Home / 8,127.60-12,175.20-4,424.28

Finding the Fourth Proportional to 8,127.60, 12,175.20 and 4,424.28

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Solution

The fourth proportional to 8,127.60, 12,175.20 and 4,424.28 is: 6,627.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.60 : 12,175.20 = 4,424.28 : x
  2. Step 2: Convert to fraction form
    8,127.60/12,175.20 = 4,424.28/x
  3. Step 3: Cross multiply
    8,127.60x = 12,175.20 × 4,424.28
  4. Step 4: Simplify right side
    8,127.60x = 53,866,493.86
  5. Step 5: Solve for x
    x = 53,866,493.86/8,127.60
  6. Step 6: Final answer
    x = 6,627.60

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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.