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Finding the Fourth Proportional to 8,980.84, 13,472.85 and 3,057.42

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Solution

The fourth proportional to 8,980.84, 13,472.85 and 3,057.42 is: 4,586.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.84 : 13,472.85 = 3,057.42 : x
  2. Step 2: Convert to fraction form
    8,980.84/13,472.85 = 3,057.42/x
  3. Step 3: Cross multiply
    8,980.84x = 13,472.85 × 3,057.42
  4. Step 4: Simplify right side
    8,980.84x = 41,192,223.04
  5. Step 5: Solve for x
    x = 41,192,223.04/8,980.84
  6. Step 6: Final answer
    x = 4,586.68

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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.