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Finding the Fourth Proportional to 8,941.98, 13,409.02 and 4,781.22

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Solution

The fourth proportional to 8,941.98, 13,409.02 and 4,781.22 is: 7,169.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,941.98 : 13,409.02 = 4,781.22 : x
  2. Step 2: Convert to fraction form
    8,941.98/13,409.02 = 4,781.22/x
  3. Step 3: Cross multiply
    8,941.98x = 13,409.02 × 4,781.22
  4. Step 4: Simplify right side
    8,941.98x = 64,111,474.60
  5. Step 5: Solve for x
    x = 64,111,474.60/8,941.98
  6. Step 6: Final answer
    x = 7,169.72

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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.