Home / 18,350.24-25,321.60-10,390.92

Finding the Fourth Proportional to 18,350.24, 25,321.60 and 10,390.92

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Solution

The fourth proportional to 18,350.24, 25,321.60 and 10,390.92 is: 14,338.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,350.24 : 25,321.60 = 10,390.92 : x
  2. Step 2: Convert to fraction form
    18,350.24/25,321.60 = 10,390.92/x
  3. Step 3: Cross multiply
    18,350.24x = 25,321.60 × 10,390.92
  4. Step 4: Simplify right side
    18,350.24x = 263,114,719.87
  5. Step 5: Solve for x
    x = 263,114,719.87/18,350.24
  6. Step 6: Final answer
    x = 14,338.49

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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.