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Finding the Fourth Proportional to 8,355.36, 12,530.88 and 3,964.08

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Solution

The fourth proportional to 8,355.36, 12,530.88 and 3,964.08 is: 5,945.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.36 : 12,530.88 = 3,964.08 : x
  2. Step 2: Convert to fraction form
    8,355.36/12,530.88 = 3,964.08/x
  3. Step 3: Cross multiply
    8,355.36x = 12,530.88 × 3,964.08
  4. Step 4: Simplify right side
    8,355.36x = 49,673,410.79
  5. Step 5: Solve for x
    x = 49,673,410.79/8,355.36
  6. Step 6: Final answer
    x = 5,945.10

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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.