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Finding the Fourth Proportional to 8,940.16, 13,405.92 and 3,941.92

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Solution

The fourth proportional to 8,940.16, 13,405.92 and 3,941.92 is: 5,910.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.16 : 13,405.92 = 3,941.92 : x
  2. Step 2: Convert to fraction form
    8,940.16/13,405.92 = 3,941.92/x
  3. Step 3: Cross multiply
    8,940.16x = 13,405.92 × 3,941.92
  4. Step 4: Simplify right side
    8,940.16x = 52,845,064.17
  5. Step 5: Solve for x
    x = 52,845,064.17/8,940.16
  6. Step 6: Final answer
    x = 5,910.98

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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.