Home / 18,513.44-25,549.19-10,129.94

Finding the Fourth Proportional to 18,513.44, 25,549.19 and 10,129.94

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Solution

The fourth proportional to 18,513.44, 25,549.19 and 10,129.94 is: 13,979.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513.44 : 25,549.19 = 10,129.94 : x
  2. Step 2: Convert to fraction form
    18,513.44/25,549.19 = 10,129.94/x
  3. Step 3: Cross multiply
    18,513.44x = 25,549.19 × 10,129.94
  4. Step 4: Simplify right side
    18,513.44x = 258,811,761.75
  5. Step 5: Solve for x
    x = 258,811,761.75/18,513.44
  6. Step 6: Final answer
    x = 13,979.67

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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.