Home / 18,520.54-25,534.92-13,480.72

Finding the Fourth Proportional to 18,520.54, 25,534.92 and 13,480.72

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Solution

The fourth proportional to 18,520.54, 25,534.92 and 13,480.72 is: 18,586.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.54 : 25,534.92 = 13,480.72 : x
  2. Step 2: Convert to fraction form
    18,520.54/25,534.92 = 13,480.72/x
  3. Step 3: Cross multiply
    18,520.54x = 25,534.92 × 13,480.72
  4. Step 4: Simplify right side
    18,520.54x = 344,229,106.74
  5. Step 5: Solve for x
    x = 344,229,106.74/18,520.54
  6. Step 6: Final answer
    x = 18,586.34

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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.