Home / 13,684.44-20,499.85-12,196.76

Finding the Fourth Proportional to 13,684.44, 20,499.85 and 12,196.76

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Solution

The fourth proportional to 13,684.44, 20,499.85 and 12,196.76 is: 18,271.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684.44 : 20,499.85 = 12,196.76 : x
  2. Step 2: Convert to fraction form
    13,684.44/20,499.85 = 12,196.76/x
  3. Step 3: Cross multiply
    13,684.44x = 20,499.85 × 12,196.76
  4. Step 4: Simplify right side
    13,684.44x = 250,031,750.49
  5. Step 5: Solve for x
    x = 250,031,750.49/13,684.44
  6. Step 6: Final answer
    x = 18,271.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.