Home / 13,623.99-18,798.26-8,031.75

Finding the Fourth Proportional to 13,623.99, 18,798.26 and 8,031.75

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Solution

The fourth proportional to 13,623.99, 18,798.26 and 8,031.75 is: 11,082.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.99 : 18,798.26 = 8,031.75 : x
  2. Step 2: Convert to fraction form
    13,623.99/18,798.26 = 8,031.75/x
  3. Step 3: Cross multiply
    13,623.99x = 18,798.26 × 8,031.75
  4. Step 4: Simplify right side
    13,623.99x = 150,982,884.60
  5. Step 5: Solve for x
    x = 150,982,884.60/13,623.99
  6. Step 6: Final answer
    x = 11,082.13

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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.