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Finding the Fourth Proportional to 8,416.80, 12,628.02 and 3,736.16

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Solution

The fourth proportional to 8,416.80, 12,628.02 and 3,736.16 is: 5,605.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.80 : 12,628.02 = 3,736.16 : x
  2. Step 2: Convert to fraction form
    8,416.80/12,628.02 = 3,736.16/x
  3. Step 3: Cross multiply
    8,416.80x = 12,628.02 × 3,736.16
  4. Step 4: Simplify right side
    8,416.80x = 47,180,303.20
  5. Step 5: Solve for x
    x = 47,180,303.20/8,416.80
  6. Step 6: Final answer
    x = 5,605.49

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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.