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Finding the Fourth Proportional to 8,208.84, 12,320.60 and 5,868.75

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Solution

The fourth proportional to 8,208.84, 12,320.60 and 5,868.75 is: 8,808.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.84 : 12,320.60 = 5,868.75 : x
  2. Step 2: Convert to fraction form
    8,208.84/12,320.60 = 5,868.75/x
  3. Step 3: Cross multiply
    8,208.84x = 12,320.60 × 5,868.75
  4. Step 4: Simplify right side
    8,208.84x = 72,306,491.91
  5. Step 5: Solve for x
    x = 72,306,491.91/8,208.84
  6. Step 6: Final answer
    x = 8,808.37

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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.