Home / 13,183.10-18,192.69-7,214.77

Finding the Fourth Proportional to 13,183.10, 18,192.69 and 7,214.77

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Solution

The fourth proportional to 13,183.10, 18,192.69 and 7,214.77 is: 9,956.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.10 : 18,192.69 = 7,214.77 : x
  2. Step 2: Convert to fraction form
    13,183.10/18,192.69 = 7,214.77/x
  3. Step 3: Cross multiply
    13,183.10x = 18,192.69 × 7,214.77
  4. Step 4: Simplify right side
    13,183.10x = 131,255,946.99
  5. Step 5: Solve for x
    x = 131,255,946.99/13,183.10
  6. Step 6: Final answer
    x = 9,956.38

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Half scale
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Double scale
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Similar ratio
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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.