Home / 13,310.12-18,367.31-7,341.64

Finding the Fourth Proportional to 13,310.12, 18,367.31 and 7,341.64

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Solution

The fourth proportional to 13,310.12, 18,367.31 and 7,341.64 is: 10,131.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.12 : 18,367.31 = 7,341.64 : x
  2. Step 2: Convert to fraction form
    13,310.12/18,367.31 = 7,341.64/x
  3. Step 3: Cross multiply
    13,310.12x = 18,367.31 × 7,341.64
  4. Step 4: Simplify right side
    13,310.12x = 134,846,108.93
  5. Step 5: Solve for x
    x = 134,846,108.93/13,310.12
  6. Step 6: Final answer
    x = 10,131.09

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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.