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Finding the Fourth Proportional to 8,674.60, 13,011.42 and 3,741.80

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Solution

The fourth proportional to 8,674.60, 13,011.42 and 3,741.80 is: 5,612.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.60 : 13,011.42 = 3,741.80 : x
  2. Step 2: Convert to fraction form
    8,674.60/13,011.42 = 3,741.80/x
  3. Step 3: Cross multiply
    8,674.60x = 13,011.42 × 3,741.80
  4. Step 4: Simplify right side
    8,674.60x = 48,686,131.36
  5. Step 5: Solve for x
    x = 48,686,131.36/8,674.60
  6. Step 6: Final answer
    x = 5,612.49

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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.