Home / 18,520.56-25,556.76-10,453.77

Finding the Fourth Proportional to 18,520.56, 25,556.76 and 10,453.77

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Solution

The fourth proportional to 18,520.56, 25,556.76 and 10,453.77 is: 14,425.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.56 : 25,556.76 = 10,453.77 : x
  2. Step 2: Convert to fraction form
    18,520.56/25,556.76 = 10,453.77/x
  3. Step 3: Cross multiply
    18,520.56x = 25,556.76 × 10,453.77
  4. Step 4: Simplify right side
    18,520.56x = 267,164,490.99
  5. Step 5: Solve for x
    x = 267,164,490.99/18,520.56
  6. Step 6: Final answer
    x = 14,425.29

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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.