Home / 13,490.52-18,626.94-8,192.49

Finding the Fourth Proportional to 13,490.52, 18,626.94 and 8,192.49

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Solution

The fourth proportional to 13,490.52, 18,626.94 and 8,192.49 is: 11,311.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.52 : 18,626.94 = 8,192.49 : x
  2. Step 2: Convert to fraction form
    13,490.52/18,626.94 = 8,192.49/x
  3. Step 3: Cross multiply
    13,490.52x = 18,626.94 × 8,192.49
  4. Step 4: Simplify right side
    13,490.52x = 152,601,019.68
  5. Step 5: Solve for x
    x = 152,601,019.68/13,490.52
  6. Step 6: Final answer
    x = 11,311.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.