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Finding the Fourth Proportional to 8,079.78, 12,102.08 and 4,950.26

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Solution

The fourth proportional to 8,079.78, 12,102.08 and 4,950.26 is: 7,414.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.78 : 12,102.08 = 4,950.26 : x
  2. Step 2: Convert to fraction form
    8,079.78/12,102.08 = 4,950.26/x
  3. Step 3: Cross multiply
    8,079.78x = 12,102.08 × 4,950.26
  4. Step 4: Simplify right side
    8,079.78x = 59,908,357.28
  5. Step 5: Solve for x
    x = 59,908,357.28/8,079.78
  6. Step 6: Final answer
    x = 7,414.60

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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.