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Finding the Fourth Proportional to 8,338.50, 11,507.49 and 4,612.50

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Solution

The fourth proportional to 8,338.50, 11,507.49 and 4,612.50 is: 6,365.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338.50 : 11,507.49 = 4,612.50 : x
  2. Step 2: Convert to fraction form
    8,338.50/11,507.49 = 4,612.50/x
  3. Step 3: Cross multiply
    8,338.50x = 11,507.49 × 4,612.50
  4. Step 4: Simplify right side
    8,338.50x = 53,078,297.63
  5. Step 5: Solve for x
    x = 53,078,297.63/8,338.50
  6. Step 6: Final answer
    x = 6,365.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.