Home / 13,379.91-18,473.21-8,346.15

Finding the Fourth Proportional to 13,379.91, 18,473.21 and 8,346.15

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Solution

The fourth proportional to 13,379.91, 18,473.21 and 8,346.15 is: 11,523.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,379.91 : 18,473.21 = 8,346.15 : x
  2. Step 2: Convert to fraction form
    13,379.91/18,473.21 = 8,346.15/x
  3. Step 3: Cross multiply
    13,379.91x = 18,473.21 × 8,346.15
  4. Step 4: Simplify right side
    13,379.91x = 154,180,181.64
  5. Step 5: Solve for x
    x = 154,180,181.64/13,379.91
  6. Step 6: Final answer
    x = 11,523.26

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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.