Home / 8,728.44-12,043.20-4,950.78

Finding the Fourth Proportional to 8,728.44, 12,043.20 and 4,950.78

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Solution

The fourth proportional to 8,728.44, 12,043.20 and 4,950.78 is: 6,830.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.44 : 12,043.20 = 4,950.78 : x
  2. Step 2: Convert to fraction form
    8,728.44/12,043.20 = 4,950.78/x
  3. Step 3: Cross multiply
    8,728.44x = 12,043.20 × 4,950.78
  4. Step 4: Simplify right side
    8,728.44x = 59,623,233.70
  5. Step 5: Solve for x
    x = 59,623,233.70/8,728.44
  6. Step 6: Final answer
    x = 6,830.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.