Home / 18,512.08-25,520.10-13,197.67

Finding the Fourth Proportional to 18,512.08, 25,520.10 and 13,197.67

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Solution

The fourth proportional to 18,512.08, 25,520.10 and 13,197.67 is: 18,193.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,512.08 : 25,520.10 = 13,197.67 : x
  2. Step 2: Convert to fraction form
    18,512.08/25,520.10 = 13,197.67/x
  3. Step 3: Cross multiply
    18,512.08x = 25,520.10 × 13,197.67
  4. Step 4: Simplify right side
    18,512.08x = 336,805,987.41
  5. Step 5: Solve for x
    x = 336,805,987.41/18,512.08
  6. Step 6: Final answer
    x = 18,193.85

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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.