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Finding the Fourth Proportional to 8,920.89, 13,401.84 and 6,294.44

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Solution

The fourth proportional to 8,920.89, 13,401.84 and 6,294.44 is: 9,456.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.89 : 13,401.84 = 6,294.44 : x
  2. Step 2: Convert to fraction form
    8,920.89/13,401.84 = 6,294.44/x
  3. Step 3: Cross multiply
    8,920.89x = 13,401.84 × 6,294.44
  4. Step 4: Simplify right side
    8,920.89x = 84,357,134.88
  5. Step 5: Solve for x
    x = 84,357,134.88/8,920.89
  6. Step 6: Final answer
    x = 9,456.13

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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.