Home / 13,147.68-18,149.66-10,230.64

Finding the Fourth Proportional to 13,147.68, 18,149.66 and 10,230.64

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Solution

The fourth proportional to 13,147.68, 18,149.66 and 10,230.64 is: 14,122.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147.68 : 18,149.66 = 10,230.64 : x
  2. Step 2: Convert to fraction form
    13,147.68/18,149.66 = 10,230.64/x
  3. Step 3: Cross multiply
    13,147.68x = 18,149.66 × 10,230.64
  4. Step 4: Simplify right side
    13,147.68x = 185,682,572.41
  5. Step 5: Solve for x
    x = 185,682,572.41/13,147.68
  6. Step 6: Final answer
    x = 14,122.84

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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.