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Finding the Fourth Proportional to 8,658.84, 11,948.94 and 4,882.20

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Solution

The fourth proportional to 8,658.84, 11,948.94 and 4,882.20 is: 6,737.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,658.84 : 11,948.94 = 4,882.20 : x
  2. Step 2: Convert to fraction form
    8,658.84/11,948.94 = 4,882.20/x
  3. Step 3: Cross multiply
    8,658.84x = 11,948.94 × 4,882.20
  4. Step 4: Simplify right side
    8,658.84x = 58,337,114.87
  5. Step 5: Solve for x
    x = 58,337,114.87/8,658.84
  6. Step 6: Final answer
    x = 6,737.29

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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.