Home / 18,318.48-25,279.32-10,360.68

Finding the Fourth Proportional to 18,318.48, 25,279.32 and 10,360.68

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Solution

The fourth proportional to 18,318.48, 25,279.32 and 10,360.68 is: 14,297.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318.48 : 25,279.32 = 10,360.68 : x
  2. Step 2: Convert to fraction form
    18,318.48/25,279.32 = 10,360.68/x
  3. Step 3: Cross multiply
    18,318.48x = 25,279.32 × 10,360.68
  4. Step 4: Simplify right side
    18,318.48x = 261,910,945.14
  5. Step 5: Solve for x
    x = 261,910,945.14/18,318.48
  6. Step 6: Final answer
    x = 14,297.64

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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.