Home / 13,748.82-20,609.38-5,434.74

Finding the Fourth Proportional to 13,748.82, 20,609.38 and 5,434.74

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Solution

The fourth proportional to 13,748.82, 20,609.38 and 5,434.74 is: 8,146.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.82 : 20,609.38 = 5,434.74 : x
  2. Step 2: Convert to fraction form
    13,748.82/20,609.38 = 5,434.74/x
  3. Step 3: Cross multiply
    13,748.82x = 20,609.38 × 5,434.74
  4. Step 4: Simplify right side
    13,748.82x = 112,006,621.86
  5. Step 5: Solve for x
    x = 112,006,621.86/13,748.82
  6. Step 6: Final answer
    x = 8,146.64

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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.