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Finding the Fourth Proportional to 8,572.49, 12,849.45 and 5,601.57

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Solution

The fourth proportional to 8,572.49, 12,849.45 and 5,601.57 is: 8,396.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,572.49 : 12,849.45 = 5,601.57 : x
  2. Step 2: Convert to fraction form
    8,572.49/12,849.45 = 5,601.57/x
  3. Step 3: Cross multiply
    8,572.49x = 12,849.45 × 5,601.57
  4. Step 4: Simplify right side
    8,572.49x = 71,977,093.64
  5. Step 5: Solve for x
    x = 71,977,093.64/8,572.49
  6. Step 6: Final answer
    x = 8,396.29

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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.