Home / 13,601.62-20,416.20-9,158.77

Finding the Fourth Proportional to 13,601.62, 20,416.20 and 9,158.77

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Solution

The fourth proportional to 13,601.62, 20,416.20 and 9,158.77 is: 13,747.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.62 : 20,416.20 = 9,158.77 : x
  2. Step 2: Convert to fraction form
    13,601.62/20,416.20 = 9,158.77/x
  3. Step 3: Cross multiply
    13,601.62x = 20,416.20 × 9,158.77
  4. Step 4: Simplify right side
    13,601.62x = 186,987,280.07
  5. Step 5: Solve for x
    x = 186,987,280.07/13,601.62
  6. Step 6: Final answer
    x = 13,747.43

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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.