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Finding the Fourth Proportional to 8,393.64, 11,597.82 and 6,900.42

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Solution

The fourth proportional to 8,393.64, 11,597.82 and 6,900.42 is: 9,534.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393.64 : 11,597.82 = 6,900.42 : x
  2. Step 2: Convert to fraction form
    8,393.64/11,597.82 = 6,900.42/x
  3. Step 3: Cross multiply
    8,393.64x = 11,597.82 × 6,900.42
  4. Step 4: Simplify right side
    8,393.64x = 80,029,829.08
  5. Step 5: Solve for x
    x = 80,029,829.08/8,393.64
  6. Step 6: Final answer
    x = 9,534.58

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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.