Home / 13,245.24-18,245.79-11,350.74

Finding the Fourth Proportional to 13,245.24, 18,245.79 and 11,350.74

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Solution

The fourth proportional to 13,245.24, 18,245.79 and 11,350.74 is: 15,636.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.24 : 18,245.79 = 11,350.74 : x
  2. Step 2: Convert to fraction form
    13,245.24/18,245.79 = 11,350.74/x
  3. Step 3: Cross multiply
    13,245.24x = 18,245.79 × 11,350.74
  4. Step 4: Simplify right side
    13,245.24x = 207,103,218.38
  5. Step 5: Solve for x
    x = 207,103,218.38/13,245.24
  6. Step 6: Final answer
    x = 15,636.05

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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.