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Finding the Fourth Proportional to 8,294.75, 11,451.06 and 6,402.21

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Solution

The fourth proportional to 8,294.75, 11,451.06 and 6,402.21 is: 8,838.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,294.75 : 11,451.06 = 6,402.21 : x
  2. Step 2: Convert to fraction form
    8,294.75/11,451.06 = 6,402.21/x
  3. Step 3: Cross multiply
    8,294.75x = 11,451.06 × 6,402.21
  4. Step 4: Simplify right side
    8,294.75x = 73,312,090.84
  5. Step 5: Solve for x
    x = 73,312,090.84/8,294.75
  6. Step 6: Final answer
    x = 8,838.37

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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.