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Finding the Fourth Proportional to 8,602.05, 11,871.31 and 6,473.75

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Solution

The fourth proportional to 8,602.05, 11,871.31 and 6,473.75 is: 8,934.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,602.05 : 11,871.31 = 6,473.75 : x
  2. Step 2: Convert to fraction form
    8,602.05/11,871.31 = 6,473.75/x
  3. Step 3: Cross multiply
    8,602.05x = 11,871.31 × 6,473.75
  4. Step 4: Simplify right side
    8,602.05x = 76,851,893.11
  5. Step 5: Solve for x
    x = 76,851,893.11/8,602.05
  6. Step 6: Final answer
    x = 8,934.14

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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.