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Finding the Fourth Proportional to 17,183.80, 25,737.30 and 13,257.40

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Solution

The fourth proportional to 17,183.80, 25,737.30 and 13,257.40 is: 19,856.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,183.80 : 25,737.30 = 13,257.40 : x
  2. Step 2: Convert to fraction form
    17,183.80/25,737.30 = 13,257.40/x
  3. Step 3: Cross multiply
    17,183.80x = 25,737.30 × 13,257.40
  4. Step 4: Simplify right side
    17,183.80x = 341,209,681.02
  5. Step 5: Solve for x
    x = 341,209,681.02/17,183.80
  6. Step 6: Final answer
    x = 19,856.47

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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.