Home / 13,671.72-20,493.18-7,090.92

Finding the Fourth Proportional to 13,671.72, 20,493.18 and 7,090.92

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Solution

The fourth proportional to 13,671.72, 20,493.18 and 7,090.92 is: 10,628.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671.72 : 20,493.18 = 7,090.92 : x
  2. Step 2: Convert to fraction form
    13,671.72/20,493.18 = 7,090.92/x
  3. Step 3: Cross multiply
    13,671.72x = 20,493.18 × 7,090.92
  4. Step 4: Simplify right side
    13,671.72x = 145,315,499.93
  5. Step 5: Solve for x
    x = 145,315,499.93/13,671.72
  6. Step 6: Final answer
    x = 10,628.91

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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.