Home / 13,183.48-18,193.10-7,215.04

Finding the Fourth Proportional to 13,183.48, 18,193.10 and 7,215.04

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Solution

The fourth proportional to 13,183.48, 18,193.10 and 7,215.04 is: 9,956.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.48 : 18,193.10 = 7,215.04 : x
  2. Step 2: Convert to fraction form
    13,183.48/18,193.10 = 7,215.04/x
  3. Step 3: Cross multiply
    13,183.48x = 18,193.10 × 7,215.04
  4. Step 4: Simplify right side
    13,183.48x = 131,263,944.22
  5. Step 5: Solve for x
    x = 131,263,944.22/13,183.48
  6. Step 6: Final answer
    x = 9,956.70

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Double scale
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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.